{"id":2770,"date":"2024-02-02T13:49:59","date_gmt":"2024-02-02T06:49:59","guid":{"rendered":"https:\/\/hoachatlocthien.com\/?p=2770"},"modified":"2025-02-13T08:19:39","modified_gmt":"2025-02-13T01:19:39","slug":"ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau","status":"publish","type":"post","link":"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau","title":{"rendered":"\u1ee8ng D\u1ee5ng X\u00fat NaOH L\u00e0m Gi\u1ea5y V\u00e0 Mua X\u00fat NaOH \u1ede \u0110\u00e2u?"},"content":{"rendered":"<p>H\u00f3a Ch\u1ea5t X\u00fat NaOH l\u00e0 m\u1ed9t h\u00f3a ch\u1ea5t v\u00f4 c\u00f9ng \u0111a n\u0103ng v\u00e0 h\u1eefu d\u1ee5ng trong \u0111\u1eddi s\u1ed1ng h\u1eb1ng ng\u00e0y, v\u00e0 n\u1ebfu b\u1ea1n mu\u1ed1n <strong>t\u00ecm hi\u1ec3u NaOH 45% l\u00e0 g\u00ec<\/strong>, b\u00e0i vi\u1ebft li\u00ean quan t\u1ea1i L\u1ed9c Thi\u00ean s\u1ebd r\u1ea5t h\u1eefu \u00edch. M\u1ed9t trong nh\u1eefng \u1ee9ng d\u1ee5ng ch\u00ednh c\u1ee7a NaOH l\u00e0 trong c\u00f4ng nghi\u1ec7p l\u00e0m gi\u1ea5y. Trong b\u00e0i vi\u1ebft n\u00e0y, L\u1ed9c Thi\u00ean s\u1ebd tr\u00ecnh b\u00e0y chi ti\u1ebft c\u00f4ng d\u1ee5ng c\u1ee7a NaOH trong s\u1ea3n xu\u1ea5t gi\u1ea5y c\u0169ng nh\u01b0 gi\u1edbi thi\u1ec7u qu\u00fd kh\u00e1ch n\u01a1i mua X\u00fat NaOH \u1edf \u0111\u00e2u ch\u1ea5t l\u01b0\u1ee3ng.\n<\/p><p>X\u00fat NaOH (Natri Hydroxit) l\u00e0 m\u1ed9t h\u00f3a ch\u1ea5t c\u00f4ng nghi\u1ec7p kh\u00f4ng th\u1ec3 thi\u1ebfu trong nhi\u1ec1u ng\u00e0nh s\u1ea3n xu\u1ea5t, \u0111\u1eb7c bi\u1ec7t l\u00e0 ng\u00e0nh gi\u1ea5y. V\u1eady x\u00fat NaOH 45% l\u00e0 g\u00ec v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y nh\u01b0 th\u1ebf n\u00e0o? B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 v\u1ec1 c\u00f4ng d\u1ee5ng c\u1ee7a NaOH, \u0111\u1ed3ng th\u1eddi h\u01b0\u1edbng d\u1eabn b\u1ea1n mua x\u00fat NaOH ch\u1ea5t l\u01b0\u1ee3ng cao t\u1ea1i nh\u1eefng \u0111\u01a1n v\u1ecb uy t\u00edn nh\u01b0 <strong data-start=\"1095\" data-end=\"1117\">\u6d1b\u5929\u5316\u5de5<\/strong>.<\/p><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>C\u00f3 th\u1ec3 b\u1ea1n quan t\u00e2m: <a href=\"https:\/\/hoachatlocthien.com\/zh\/tim-hieu-ve-hoa-chat-sodium-hydroxide-45\/\" target=\"_new\" rel=\"noopener\">NaOH 45% l\u00e0 g\u00ec<\/a><\/strong><\/p><\/blockquote><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_72 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u5185\u5bb9<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u5207\u6362<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Khai_Niem_Chung_Ve_Xut_NaOH\" title=\"Kh\u00e1i Ni\u1ec7m Chung V\u1ec1 X\u00fat NaOH\">Kh\u00e1i Ni\u1ec7m Chung V\u1ec1 X\u00fat NaOH<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Tinh_chat_vat_ly_cua_NaOH\" title=\"T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a NaOH\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a NaOH<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Tinh_chat_hoa_hoc_cua_NaOH\" title=\"T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a NaOH\">T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a NaOH<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#NaOH_Co_Nhung_Dang_Nao\" title=\"NaOH C\u00f3 Nh\u1eefng D\u1ea1ng N\u00e0o?\">NaOH C\u00f3 Nh\u1eefng D\u1ea1ng N\u00e0o?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Doc_Tinh_Cua_Xut_NaOH\" title=\"\u0110\u1ed9c T\u00ednh C\u1ee7a X\u00fat NaOH\">\u0110\u1ed9c T\u00ednh C\u1ee7a X\u00fat NaOH<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Ung_Dung_Cua_NaOH_Trong_Cong_Nghiep_Lam_Giay\" title=\"\u1ee8ng D\u1ee5ng C\u1ee7a NaOH Trong C\u00f4ng Nghi\u1ec7p L\u00e0m Gi\u1ea5y\">\u1ee8ng D\u1ee5ng C\u1ee7a NaOH Trong C\u00f4ng Nghi\u1ec7p L\u00e0m Gi\u1ea5y<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Xut_NaOH_trong_san_xuat_giay\" title=\"X\u00fat NaOH trong s\u1ea3n xu\u1ea5t gi\u1ea5y\">X\u00fat NaOH trong s\u1ea3n xu\u1ea5t gi\u1ea5y<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Xut_NaOH_trong_tai_che_giay\" title=\"X\u00fat NaOH trong t\u00e1i ch\u1ebf gi\u1ea5y\">X\u00fat NaOH trong t\u00e1i ch\u1ebf gi\u1ea5y<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Cac_ung_dung_khac_cua_NaOH\" title=\"C\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c c\u1ee7a NaOH\">C\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c c\u1ee7a NaOH<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Mua_Xut_Naoh_O_Dau\" title=\"Mua X\u00fat Naoh \u1ede \u0110\u00e2u?\">Mua X\u00fat Naoh \u1ede \u0110\u00e2u?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Co_the_thay_the_xut_NaOH_bang_hoa_chat_khac_trong_san_xuat_giay_khong\" title=\"C\u00f3 th\u1ec3 thay th\u1ebf x\u00fat NaOH b\u1eb1ng h\u00f3a ch\u1ea5t kh\u00e1c trong s\u1ea3n xu\u1ea5t gi\u1ea5y kh\u00f4ng?\">C\u00f3 th\u1ec3 thay th\u1ebf x\u00fat NaOH b\u1eb1ng h\u00f3a ch\u1ea5t kh\u00e1c trong s\u1ea3n xu\u1ea5t gi\u1ea5y kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Xut_NaOH_co_the_tai_su_dung_trong_quy_trinh_san_xuat_giay_khong\" title=\"X\u00fat NaOH c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y kh\u00f4ng?\">X\u00fat NaOH c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Lam_the_nao_de_bao_quan_xut_NaOH_an_toan_trong_nha_may_san_xuat_giay\" title=\"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 b\u1ea3o qu\u1ea3n x\u00fat NaOH an to\u00e0n trong nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t gi\u1ea5y?\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 b\u1ea3o qu\u1ea3n x\u00fat NaOH an to\u00e0n trong nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t gi\u1ea5y?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Dung_dich_NaOH_co_han_su_dung_khong_Khi_nao_can_thay_the\" title=\"Dung d\u1ecbch NaOH c\u00f3 h\u1ea1n s\u1eed d\u1ee5ng kh\u00f4ng? Khi n\u00e0o c\u1ea7n thay th\u1ebf?\">Dung d\u1ecbch NaOH c\u00f3 h\u1ea1n s\u1eed d\u1ee5ng kh\u00f4ng? Khi n\u00e0o c\u1ea7n thay th\u1ebf?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/hoachatlocthien.com\/zh\/ung-dung-xut-naoh-lam-giay-va-mua-xut-naoh-o-dau\/#Xut_NaOH_co_gay_o_nhiem_moi_truong_khong_Lam_the_nao_de_xu_ly_nuoc_thai_chua_NaOH_an_toan\" title=\"X\u00fat NaOH c\u00f3 g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng kh\u00f4ng? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i ch\u1ee9a NaOH an to\u00e0n?\">X\u00fat NaOH c\u00f3 g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng kh\u00f4ng? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i ch\u1ee9a NaOH an to\u00e0n?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Khai_Niem_Chung_Ve_Xut_NaOH\"><\/span><strong>Kh\u00e1i Ni\u1ec7m Chung V\u1ec1 X\u00fat NaOH<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"1000\" height=\"730\" data-sizes=\"(max-width: 1000px) 100vw, 1000px\" data-src=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2024\/02\/xut-naoh.jpg\" alt=\"l\u1ed9c thi\u00ean\" class=\"wp-image-2774 lazyload\" data-srcset=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2024\/02\/xut-naoh.jpg 1000w, https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2024\/02\/xut-naoh-500x365.jpg 500w\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 1000px; --smush-placeholder-aspect-ratio: 1000\/730;\" \/><\/figure><\/div><p>Natri hydroxit (NaOH), hay c\u00f2n g\u1ecdi l\u00e0 <strong data-start=\"1653\" data-end=\"1666\">X\u00fat \u0103n da<\/strong>, l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t v\u00f4 c\u01a1 quan tr\u1ecdng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p. Khi h\u00f2a tan trong n\u01b0\u1edbc, n\u00f3 t\u1ea1o th\u00e0nh dung d\u1ecbch ki\u1ec1m m\u1ea1nh c\u00f3 \u0111\u1ed9 pH cao. V\u1edbi t\u00ednh \u0103n m\u00f2n m\u1ea1nh, NaOH c\u00f3 kh\u1ea3 n\u0103ng ph\u00e2n h\u1ee7y ch\u1ea5t h\u1eefu c\u01a1, l\u00e0m b\u1ee5c v\u1ea3i v\u00e0 gi\u1ea5y, gi\u00fap lo\u1ea1i b\u1ecf lignin trong s\u1ea3n xu\u1ea5t gi\u1ea5y. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 s\u1ea3n xu\u1ea5t gi\u1ea5y, luy\u1ec7n nh\u00f4m, d\u1ec7t nhu\u1ed9m, ch\u1ebf t\u1ea1o x\u00e0 ph\u00f2ng, s\u1ea3n xu\u1ea5t ch\u1ea5t t\u1ea9y r\u1eeda, t\u01a1 nh\u00e2n t\u1ea1o,\u2026<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tinh_chat_vat_ly_cua_NaOH\"><\/span>T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a NaOH<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>H\u00f3a ch\u1ea5t NaOH t\u1ed3n t\u1ea1i \u1edf d\u1ea1ng v\u1ea3y, h\u1ea1t ho\u1eb7c d\u1ea1ng dung d\u1ecbch v\u1edbi nhi\u1ec1u h\u00e0m l\u01b0\u1ee3ng kh\u00e1c nhau nh\u01b0 50%, 32%, 20%,\u2026.<\/li>\n\n<li>\u1ede d\u1ea1ng r\u1eafn, x\u00fat h\u00fat \u1ea9m m\u1ea1nh, tan nhanh trong n\u01b0\u1edbc t\u1ea1o ra dung d\u1ecbch ki\u1ec1m m\u1ea1nh v\u00e0 t\u1ecfa nhi\u1ec7t khi tan.<\/li>\n\n<li>D\u1ea1ng dung d\u1ecbch c\u1ee7a NaOH c\u00f3 \u0111\u1eb7c t\u00ednh nh\u1eddn, c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m b\u1ee5c v\u1ea3i, gi\u1ea5y v\u00e0 g\u00e2y \u0103n m\u00f2n da.<\/li>\n\n<li>Dung d\u1ecbch X\u00fat d\u1ec5 h\u1ea5p th\u1ee5 CO2 v\u00e0 h\u00fat \u1ea9m t\u1eeb kh\u00f4ng kh\u00ed, do \u0111\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n trong b\u00ecnh k\u00edn kh\u00ed.<\/li><\/ul><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>V\u1edbi nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0y, vi\u1ec7c tu\u00e2n th\u1ee7 <strong>MSDS NaOH 99<\/strong> khi s\u1eed d\u1ee5ng v\u00e0 b\u1ea3o qu\u1ea3n l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n.\n<\/p>\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/hoachatlocthien.com\/zh\/xut-naoh-ran\/\">B\u00e1n NaOH 99<\/a><\/li>\n\n<li><a href=\"https:\/\/hoachatlocthien.com\/zh\/xut-naoh-long\/\">B\u00e1n NaOH l\u1ecfng<\/a><\/li><\/ul><\/blockquote><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tinh_chat_hoa_hoc_cua_NaOH\"><\/span>T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a NaOH<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>NaOH c\u00f3 t\u00ednh baz\u01a1 m\u1ea1nh, n\u00f3 ph\u1ea3n \u1ee9ng v\u1edbi axit v\u00e0 oxit axit \u0111\u1ec3 t\u1ea1o th\u00e0nh mu\u1ed1i v\u00e0 n\u01b0\u1edbc.<\/li>\n\n<li>X\u00fat t\u00e1c d\u1ee5ng \u0111\u01b0\u1ee3c v\u1edbi c\u00e1c axit h\u1eefu c\u01a1, t\u1ea1o th\u00e0nh mu\u1ed1i v\u00e0 th\u1ee7y ph\u00e2n este, peptit.<\/li>\n\n<li>Khi t\u01b0\u01a1ng t\u00e1c v\u1edbi mu\u1ed1i, n\u00f3 t\u1ea1o ra baz\u01a1 m\u1edbi v\u00e0 mu\u1ed1i kh\u00e1c.<\/li>\n\n<li>X\u00fat NaOH c\u00f2n c\u00f3 th\u1ec3 t\u1ea1o kh\u00ed d\u1ec5 ch\u00e1y (hydro) khi ph\u1ea3n \u1ee9ng v\u1edbi m\u1ed9t s\u1ed1 kim lo\u1ea1i.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"NaOH_Co_Nhung_Dang_Nao\"><\/span>NaOH C\u00f3 Nh\u1eefng D\u1ea1ng N\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h3><p>X\u00fat NaOH c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i \u1edf nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, ph\u1ee5c v\u1ee5 c\u00e1c nhu c\u1ea7u s\u1ea3n xu\u1ea5t kh\u00e1c nhau:<\/p><ul class=\"wp-block-list\"><li><strong data-start=\"2087\" data-end=\"2109\">X\u00fat v\u1ea3y (NaOH 99%)<\/strong>: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn trong s\u1ea3n xu\u1ea5t gi\u1ea5y, x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i, c\u00f4ng nghi\u1ec7p d\u1ec7t nhu\u1ed9m.<\/li>\n\n<li><strong data-start=\"2198\" data-end=\"2220\">X\u00fat h\u1ea1t (NaOH 98%)<\/strong>: \u0110\u1ed9 tinh khi\u1ebft cao h\u01a1n, th\u00edch h\u1ee3p cho c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p th\u1ef1c ph\u1ea9m, d\u01b0\u1ee3c ph\u1ea9m.<\/li>\n\n<li><strong data-start=\"2307\" data-end=\"2332\">Dung d\u1ecbch NaOH 32-50%<\/strong>: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp trong c\u00e1c quy tr\u00ecnh s\u1ea3n xu\u1ea5t m\u00e0 kh\u00f4ng c\u1ea7n pha ch\u1ebf th\u00eam.<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Doc_Tinh_Cua_Xut_NaOH\"><\/span><strong>\u0110\u1ed9c T\u00ednh C\u1ee7a X\u00fat NaOH<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2><p>\nX\u00fat NaOH c\u00f3 t\u00ednh \u0103n m\u00f2n cao v\u00e0 c\u00f3 th\u1ec3 g\u00e2y nguy hi\u1ec3m n\u1ebfu kh\u00f4ng s\u1eed d\u1ee5ng c\u1ea9n th\u1eadn, do \u0111\u00f3, khi l\u00e0m vi\u1ec7c v\u1edbi x\u00fat NaOH, c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p an to\u00e0n nh\u01b0 \u0111eo b\u1ea3o h\u1ed9 c\u00e1 nh\u00e2n, tr\u00e1nh ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi da, v\u00e0 lu\u00f4n tu\u00e2n th\u1ee7 c\u00e1c quy t\u1eafc an to\u00e0n trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng v\u00e0 b\u1ea3o qu\u1ea3n.\n<\/p><ul class=\"wp-block-list\"><li>Ti\u1ebfp x\u00fac v\u1edbi x\u00fat c\u00f3 th\u1ec3 g\u00e2y b\u1ecfng da, v\u1edbi h\u1eadu qu\u1ea3 n\u1eb7ng n\u1ec1 n\u1ebfu kh\u00f4ng x\u1eed l\u00fd k\u1ecbp th\u1eddi.<\/li>\n\n<li>H\u00edt ph\u1ea3i x\u00fat c\u00f3 th\u1ec3 k\u00edch th\u00edch h\u1ec7 h\u00f4 h\u1ea5p, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u1ed5n th\u01b0\u01a1ng ph\u1ed5i v\u00e0 g\u00e2y h\u1ea1i cho s\u1ee9c kh\u1ecfe h\u00f4 h\u1ea5p.<\/li>\n\n<li>N\u1ebfu nu\u1ed1t ph\u1ea3i x\u00fat, \u0111\u1eb7c bi\u1ec7t l\u00e0 l\u01b0\u1ee3ng l\u1edbn, c\u00f3 th\u1ec3 g\u00e2y b\u1ecfng ni\u00eam m\u1ea1c d\u1ea1 d\u00e0y v\u00e0 ru\u1ed9t, th\u1eadm ch\u00ed d\u1eabn \u0111\u1ebfn th\u1ee7ng th\u1ef1c qu\u1ea3n v\u00e0 r\u1ed1i lo\u1ea1n \u00fd th\u1ee9c.<\/li>\n\n<li>X\u00fat c\u00f3 kh\u1ea3 n\u0103ng \u0103n m\u00f2n kim lo\u1ea1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong qu\u00e1 tr\u00ecnh ph\u1ea3n \u1ee9ng v\u1edbi m\u1ed9t s\u1ed1 kim lo\u1ea1i, c\u00f3 th\u1ec3 t\u1ea1o ra h\u01a1i d\u1ec5 ch\u00e1y, t\u0103ng nguy c\u01a1 ch\u00e1y n\u1ed5.<\/li>\n\n<li>X\u00fat c\u00f2n c\u00f3 th\u1ec3 t\u00e1c \u0111\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 axit, g\u00e2y ra c\u00e1c ph\u1ea3n \u1ee9ng ch\u00e1y n\u1ed5, t\u0103ng th\u00eam nguy c\u01a1 an to\u00e0n.<\/li>\n\n<li>Khi \u0111\u01b0\u1ee3c \u0111un n\u00f3ng, x\u00fat c\u00f3 th\u1ec3 t\u1ea1o ra h\u01a1i \u0103n m\u00f2n, g\u00e2y nguy hi\u1ec3m cho ng\u01b0\u1eddi ti\u1ebfp x\u00fac.<\/li><\/ul><p>\nQu\u00fd kh\u00e1ch c\u0169ng n\u00ean th\u1eadn tr\u1ecdng khi mua X\u00fat NaOH b\u1edfi v\u00ec ng\u00e0y c\u00e0ng c\u00f3 nhi\u1ec1u n\u01a1i b\u00e1n h\u00f3a ch\u1ea5t l\u01b0\u1ee3ng k\u00e9m n\u1ed5i l\u00ean, d\u1eabn \u0111\u1ebfn gi\u1ea3m hi\u1ec7u su\u1ea5t s\u1ea3n xu\u1ea5t c\u0169ng nh\u01b0 ti\u1ec1m \u1ea9n nguy c\u01a1 g\u00e2y h\u1ea1i. Ngo\u00e0i ra, n\u1ebfu b\u1ea1n ch\u01b0a bi\u1ebft <strong><a href=\"https:\/\/hoachatlocthien.com\/zh\/dia-chi-mua-naoh-o-dau-tp-hcm\/\" target=\"_new\" rel=\"noopener\">mua NaOH \u1edf \u0111\u00e2u TPHCM<\/a><\/strong> uy t\u00edn v\u00e0 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng, h\u00e3y li\u00ean h\u1ec7 ngay v\u1edbi L\u1ed9c Thi\u00ean \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3.\n<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ung_Dung_Cua_NaOH_Trong_Cong_Nghiep_Lam_Giay\"><\/span><strong>\u1ee8ng D\u1ee5ng C\u1ee7a NaOH Trong C\u00f4ng Nghi\u1ec7p L\u00e0m Gi\u1ea5y<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2><p>Trong s\u1ea3n xu\u1ea5t gi\u1ea5y, <strong data-start=\"2633\" data-end=\"2645\">x\u00fat NaOH<\/strong> \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng \u1edf nhi\u1ec1u c\u00f4ng \u0111o\u1ea1n nh\u01b0:<\/p><ul class=\"wp-block-list\"><li><strong data-start=\"2697\" data-end=\"2715\">X\u1eed l\u00fd b\u1ed9t gi\u1ea5y<\/strong>: Lo\u1ea1i b\u1ecf lignin kh\u1ecfi s\u1ee3i cellulose, gi\u00fap t\u1ea1o ra gi\u1ea5y tr\u1eafng, m\u1ecbn.<\/li>\n\n<li><strong data-start=\"2785\" data-end=\"2803\">T\u1ea9y tr\u1eafng gi\u1ea5y<\/strong>: \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 pH, t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng t\u1ea9y tr\u1eafng b\u1eb1ng ph\u1ea3n \u1ee9ng oxy h\u00f3a.<\/li>\n\n<li><strong data-start=\"2880\" data-end=\"2896\">T\u00e1i ch\u1ebf gi\u1ea5y<\/strong>: H\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh kh\u1eed m\u1ef1c, gi\u00fap thu h\u1ed3i s\u1ee3i cellulose \u0111\u1ec3 s\u1ea3n xu\u1ea5t gi\u1ea5y t\u00e1i ch\u1ebf.<\/li><\/ul><p>Theo truy\u1ec1n th\u1ed1ng th\u00ec X\u00fat NaOH \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ea7u h\u1ebft m\u1ecdi c\u00f4ng \u0111o\u1ea1n s\u1ea3n xu\u1ea5t gi\u1ea5y, tuy nhi\u00ean, do lo ng\u1ea1i v\u1ec1 m\u00f4i tr\u01b0\u1eddng \u0111\u1ed1i v\u1edbi t\u00e0i nguy\u00ean g\u1ed7 trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y th\u00ec vi\u1ec7c t\u00e1i ch\u1ebf gi\u1ea5y \u0111\u00e3 ph\u00e1t tri\u1ec3n tr\u1edf th\u00e0nh m\u1ed9t ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u00e1ng k\u1ec3 v\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng X\u00fat NaOH trong t\u00e1i ch\u1ebf gi\u1ea5y ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c ch\u00fa tr\u1ecdng. <\/p><p>Do \u0111\u00f3, \u1ee9ng d\u1ee5ng X\u00fat NaOH trong ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y v\u00e0 b\u1ed9t gi\u1ea5y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n th\u00e0nh hai lo\u1ea1i \u0111\u00f3 l\u00e0: <strong>s\u1ea3n xu\u1ea5t gi\u1ea5y<\/strong> \u548c <strong>t\u00e1i ch\u1ebf gi\u1ea5y<\/strong>.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Xut_NaOH_trong_san_xuat_giay\"><\/span><strong>X\u00fat NaOH trong s\u1ea3n xu\u1ea5t gi\u1ea5y<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3><p>\nQu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y th\u01b0\u1eddng \u0111\u01b0\u1ee3c chia th\u00e0nh ba giai \u0111o\u1ea1n quan tr\u1ecdng v\u00e0 \u1edf hai giai \u0111o\u1ea1n \u0111\u1ea7u ti\u00ean th\u00ec X\u00fat NaOH \u0111\u1ec1u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp:\n\n<strong>B1: Nghi\u1ec1n (N\u1ea5u b\u1ed9t gi\u1ea5y)<\/strong><\/p><ul class=\"wp-block-list\"><li><figure><img decoding=\"async\" width=\"500\" height=\"365\" class=\"aligncenter wp-image-2772 lazyload\" data-src=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2024\/02\/92t87r23t87r.jpg\" alt=\"x\u00fat naoh\" data-srcset=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2024\/02\/92t87r23t87r.jpg 1000w, https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2024\/02\/92t87r23t87r-500x365.jpg 500w\" data-sizes=\"(max-width: 500px) 100vw, 500px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 500px; --smush-placeholder-aspect-ratio: 500\/365;\" \/><\/figure>Gi\u1ea5y \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb xenlulo, v\u00e0 m\u1eb7c d\u00f9 do ngu\u1ed3n g\u1ed7 khan hi\u1ebfm ng\u00e0y nay n\u00ean c\u00e1c nguy\u00ean li\u1ec7u th\u00f4 nh\u01b0 r\u00e1c th\u1ea3i n\u00f4ng nghi\u1ec7p, b\u00e3 th\u1ef1c v\u1eadt, gi\u1ea5y th\u1ea3i v\u00e0 th\u1eadm ch\u00ed c\u1ea3 qu\u1ea7n \u00e1o c\u0169 \u0111\u1ec1u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, tuy nhi\u00ean th\u00ec g\u1ed7 v\u1eabn l\u00e0 ngu\u1ed3n cung c\u1ea5p xenlulo ch\u00ednh.<\/li>\n\n<li>Tuy nhi\u00ean, g\u1ed7 kh\u00f4ng ch\u1ec9 ch\u1ee9a s\u1ee3i cellulose m\u00e0 c\u00f2n c\u00f3 nh\u1eefng ch\u1ea5t kh\u00e1c c\u1ea7n lo\u1ea1i b\u1ecf, nh\u1ea5t l\u00e0 lignin, m\u1ed9t ch\u1ea5t c\u00f3 trong k\u1ebft c\u1ea5u c\u1ee7a g\u1ed7, c\u00f3 t\u00e1c d\u1ee5ng nh\u01b0 ch\u1ea5t keo, li\u00ean k\u1ebft c\u00e1c s\u1ee3i cellulose c\u1ee7a g\u1ed7 l\u1ea1i v\u1edbi nhau.<\/li>\n\n<li>\u0110\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c lo\u1ea1i b\u1ecf lignin v\u00e0 c\u00e1c ch\u1ea5t kh\u00e1c, g\u1ed7 \u0111\u1ea7u v\u00e0o ph\u1ea3i \u0111\u01b0\u1ee3c n\u1ea5u cho \u0111\u1ebfn khi tr\u1edf th\u00e0nh b\u1ed9t gi\u1ea5y. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 nghi\u1ec1n b\u1ed9t v\u00e0 c\u00f3 s\u1eed d\u1ee5ng X\u00fat NaOH \u1edf nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t cao \u0111\u1ec3 h\u00f2a tan lignin.<\/li><\/ul><p><strong>B2: T\u1ea9y tr\u1eafng b\u1ed9t gi\u1ea5y<\/strong><\/p><ul class=\"wp-block-list\"><li>B\u1ed9t gi\u1ea5y c\u00f3 m\u00e0u v\u00e0ng do c\u00f3 ch\u1ee9a lignin v\u00e0 ch\u1ea5t n\u00e0y s\u1ebd l\u00e0m m\u1ea5t th\u1ea9m m\u1ef9 c\u0169ng nh\u01b0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng cho s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng. Giai \u0111o\u1ea1n t\u1ea9y tr\u1eafng b\u1ed9t gi\u1ea5y \u0111\u01b0\u1ee3c chia th\u00e0nh hai giai \u0111o\u1ea1n: t\u1ea9y tr\u1eafng v\u00e0 chi\u1ebft xu\u1ea5t.<\/li>\n\n<li>\u1ede giai \u0111o\u1ea1n t\u1ea9y tr\u1eafng ng\u01b0\u1eddi ta s\u1eed d\u1ee5ng h\u00f3a ch\u1ea5t t\u1ea9y tr\u1eafng nh\u01b0 Javen ho\u1eb7c X\u00fat (c\u00f3 \u0111\u1ed9 pH cao) \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 t\u1ed1i \u0111a. H\u1ea7u nh\u01b0 t\u1ea5t c\u1ea3 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec1u s\u1eed d\u1ee5ng X\u00fat NaOH \u1edf giai \u0111o\u1ea1n n\u00e0y \u0111\u1ec3 ki\u1ec3m so\u00e1t \u0111\u1ed9 pH.<\/li>\n\n<li>Trong giai \u0111o\u1ea1n chi\u1ebft xu\u1ea5t, b\u1ed9t gi\u1ea5y b\u1ecb oxy h\u00f3a \u0111\u1ec3 lignin \u0111\u01b0\u1ee3c h\u00f2a tan trong dung d\u1ecbch ki\u1ec1m v\u00e0 t\u1eeb \u0111\u00f3 n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chi\u1ebft ra kh\u1ecfi b\u1ed9t. Ngo\u00e0i ra, X\u00fat NaOH kh\u00f4ng c\u00f3 l\u1ef1a ch\u1ecdn thay th\u1ebf hi\u1ec7u qu\u1ea3 v\u1ec1 m\u1eb7t chi ph\u00ed \u1edf giai \u0111o\u1ea1n n\u00e0y v\u00ec nhi\u1ec1u l\u00fd do.<\/li><\/ul><p><strong>B3: L\u00e0m gi\u1ea5y<\/strong><\/p><ul class=\"wp-block-list\"><li>Cu\u1ed1i c\u00f9ng, b\u1ed9t gi\u1ea5y \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi l\u01b0\u1ee3ng n\u01b0\u1edbc l\u1edbn v\u00e0 \u0111\u01b0\u1ee3c \u0111\u01b0a qua m\u00e1y gi\u1ea5y. M\u00e1y gi\u1ea5y l\u00e0 m\u1ed9t c\u1ed7 m\u00e1y kh\u1ed5ng l\u1ed3 bi\u1ebfn b\u1ed9t gi\u1ea5y th\u00e0nh s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng mong mu\u1ed1n th\u00f4ng qua c\u00e1c b\u01b0\u1edbc t\u1ea1o h\u00ecnh, \u00e9p v\u00e0 s\u1ea5y kh\u00f4 (gi\u1ea5y s\u1ebd c\u00f3 k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 trong su\u1ed1t v\u00e0 \u0111\u1ed9 b\u1ec1n kh\u00e1c nhau).<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Xut_NaOH_trong_tai_che_giay\"><\/span><figure><img decoding=\"async\" class=\"aligncenter wp-image-2773 size-full lazyload\" data-src=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2024\/02\/xut-naoh-11.jpg\" alt=\"x\u00fat naoh\" width=\"1000\" height=\"730\" data-srcset=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2024\/02\/xut-naoh-11.jpg 1000w, https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2024\/02\/xut-naoh-11-500x365.jpg 500w\" data-sizes=\"(max-width: 1000px) 100vw, 1000px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 1000px; --smush-placeholder-aspect-ratio: 1000\/730;\" \/><\/figure><strong>X\u00fat NaOH trong t\u00e1i ch\u1ebf gi\u1ea5y<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>T\u00e1i ch\u1ebf gi\u1ea5y b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c ph\u00e2n lo\u1ea1i v\u00e0 \u0111o l\u01b0\u1eddng ch\u1ea5t l\u01b0\u1ee3ng gi\u1ea5y th\u1ea3i theo h\u00e0m l\u01b0\u1ee3ng cellulose c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf \u0111\u01b0\u1ee3c. B\u01b0\u1edbc ti\u1ebfp theo l\u00e0 kh\u1eed m\u1ef1c, bao g\u1ed3m l\u00e0m m\u1ecbn v\u00e0 ph\u1ed3ng gi\u1ea5y th\u1ea3i \u0111\u1ea7u v\u00e0o b\u1eb1ng NaOH, ch\u1ea5t gi\u00fap t\u00e1ch m\u1ef1c ra kh\u1ecfi gi\u1ea5y \u0111\u00e3 s\u1eed d\u1ee5ng.<\/li>\n\n<li>Giai \u0111o\u1ea1n cu\u1ed1i c\u00f9ng c\u1ee7a qu\u00e1 tr\u00ecnh t\u00e1i ch\u1ebf gi\u1ea5y c\u0169ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 giai \u0111o\u1ea1n cu\u1ed1i c\u00f9ng c\u1ee7a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y, khi b\u1ed9t gi\u1ea5y \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u00e1y gi\u1ea5y v\u00e0 s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng \u0111\u01b0\u1ee3c t\u1ea1o ra.<\/li>\n\n<li>Nh\u01b0 \u0111\u00e3 th\u1ea3o lu\u1eadn trong b\u00e0i vi\u1ebft n\u00e0y, x\u00fat l\u00e0 v\u1eadt li\u1ec7u x\u1eed l\u00fd quan tr\u1ecdng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ea7u h\u1ebft m\u1ecdi giai \u0111o\u1ea1n c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y v\u00e0 b\u1ed9t gi\u1ea5y.<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cac_ung_dung_khac_cua_NaOH\"><\/span>C\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c c\u1ee7a NaOH<span class=\"ez-toc-section-end\"><\/span><\/h2><ul class=\"wp-block-list\"><li>\u1ee8ng d\u1ee5ng trong x\u1eed l\u00fd n\u01b0\u1edbc<ul class=\"wp-block-list\"><li>X\u00fat NaOH th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 pH c\u1ee7a n\u01b0\u1edbc, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong h\u1ed3 b\u01a1i v\u00ec n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m t\u0103ng n\u1ed3ng \u0111\u1ed9 pH. X\u00fat c\u0169ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 trung h\u00f2a c\u1eb7n trong \u0111\u01b0\u1eddng \u1ed1ng c\u1ea5p n\u01b0\u1edbc.<\/li><\/ul><\/li>\n\n<li>C\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t t\u1ea9y r\u1eeda<ul class=\"wp-block-list\"><li>Trong s\u1ea3n xu\u1ea5t ch\u1ea5t t\u1ea9y r\u1eeda, X\u00fat NaOH v\u00e0 c\u00e1c h\u1ee3p ch\u1ea5t Natri l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong vi\u1ec7c s\u1ea3n xu\u1ea5t c\u00e1c ch\u1ea5t t\u1ea9y gi\u1eb7t m\u1ea1nh m\u1ebd nh\u01b0 n\u01b0\u1edbc Javen. Natri Hydroxit c\u00f2n tham gia v\u00e0o qu\u00e1 tr\u00ecnh th\u1ee7y ph\u00e2n ch\u1ea5t b\u00e9o trong d\u1ea7u m\u1ee1 \u0111\u1ed9ng v\u1eadt, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m n\u01b0\u1edbc r\u1eeda ch\u00e9n. Pha lo\u1ea1i x\u00fat NaOH v\u1edbi n\u01b0\u1edbc n\u00f3ng c\u0169ng t\u1ea1o ra ch\u1ea5t t\u1ea9y r\u1eeda hi\u1ec7u qu\u1ea3 cho thi\u1ebft b\u1ecb c\u00f4ng ngh\u1ec7, \u1ed1ng x\u1ea3 th\u1ea3i, v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng tho\u00e1t n\u01b0\u1edbc.<\/li><\/ul><\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"1000\" height=\"730\" data-sizes=\"(max-width: 1000px) 100vw, 1000px\" data-src=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/12\/Xut-50.png\" alt=\"x\u00fat naoh - L\u1ed9c Thi\u00ean\" class=\"wp-image-1499 lazyload\" data-srcset=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/12\/Xut-50.png 1000w, https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/12\/Xut-50-500x365.png 500w\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 1000px; --smush-placeholder-aspect-ratio: 1000\/730;\" \/><\/figure><\/div><ul class=\"wp-block-list\"><li>C\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t d\u01b0\u1ee3c ph\u1ea9m v\u00e0 h\u00f3a ch\u1ea5t<ul class=\"wp-block-list\"><li>Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p d\u01b0\u1ee3c ph\u1ea9m, Natri phenolat, m\u1ed9t h\u1ee3p ch\u1ea5t c\u1ee7a x\u00fat, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong vi\u1ec7c s\u1ea3n xu\u1ea5t Aspirin v\u00e0 l\u00e0m ch\u1ea5t kh\u1eed tr\u00f9ng y t\u1ebf.<\/li><\/ul><\/li>\n\n<li>C\u00f4ng nghi\u1ec7p d\u1ea7u kh\u00ed<ul class=\"wp-block-list\"><li>H\u00f3a ch\u1ea5t ch\u1ee9a Natri \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 pH trong dung d\u1ecbch khoan, gi\u00fap trung h\u00f2a c\u00e1c h\u1ee3p ch\u1ea5t sunfat, v\u00e0 c\u00e1c h\u1ee3p ch\u1ea5t axit trong tinh ch\u1ebf d\u1ea7u m\u1ecf.<\/li><\/ul><\/li>\n\n<li>C\u00f4ng nghi\u1ec7p d\u1ec7t nhu\u1ed9m v\u00e0 th\u1ef1c ph\u1ea9m<ul class=\"wp-block-list\"><li>Trong d\u1ec7t nhu\u1ed9m, x\u00fat NaOH \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m cho m\u00e0u v\u1ea3i th\u00eam b\u00f3ng v\u00e0 nhanh h\u1ea5p th\u1ee5 m\u00e0u s\u1eafc. Trong c\u00f4ng nghi\u1ec7p th\u1ef1c ph\u1ea9m, x\u00fat \u0103n da \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 lo\u1ea1i b\u1ecf axit b\u00e9o trong qu\u00e1 tr\u00ecnh tinh ch\u1ebf d\u1ea7u th\u1ef1c v\u1eadt v\u00e0 \u0111\u1ed9ng v\u1eadt tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t th\u1ef1c ph\u1ea9m. \u0110\u1ed3ng th\u1eddi, dung d\u1ecbch x\u00fat c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd rau qu\u1ea3 tr\u01b0\u1edbc khi ch\u1ebf bi\u1ebfn ho\u1eb7c \u0111\u00f3ng h\u1ed9p.<\/li><\/ul><\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mua_Xut_Naoh_O_Dau\"><\/span><strong>Mua X\u00fat Naoh \u1ede \u0110\u00e2u?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2><p>X\u00fat l\u00e0 m\u1ed9t lo\u1ea1i h\u00f3a ch\u1ea5t c\u00f3 s\u1eb5n \u0111\u1ec3 kinh doanh t\u1ea1i <strong>H\u00f3a Ch\u1ea5t\u00a0L\u1ed9c Thi\u00ean<\/strong> \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea5p gi\u1ea5y ph\u00e9p kinh doanh cho lo\u1ea1i h\u00e0ng n\u00e0y. Ch\u00fang t\u00f4i cung c\u1ea5p v\u00e0 ph\u00e2n ph\u1ed1i c\u00e1c d\u1ea1ng x\u00fat nh\u01b0 <strong>x\u00fat v\u1ea3y<\/strong>, <strong>x\u00fat h\u1ea1t<\/strong>, <strong>dung d\u1ecbch NaOH<\/strong> \u0111\u01b0\u1ee3c nh\u1eadp kh\u1ea9u t\u1eeb c\u00e1c nh\u00e3n hi\u1ec7u n\u1ed5i ti\u1ebfng tr\u00ean th\u1ebf gi\u1edbi, \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng h\u00e0ng \u0111\u1ea7u v\u00e0 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn b\u1edfi c\u00e1c c\u01a1 quan ch\u1ee9c n\u0103ng. <\/p><p>Khi qu\u00fd kh\u00e1ch h\u00e0ng mua x\u00fat ho\u1eb7c h\u00f3a ch\u1ea5t x\u1eed l\u00fd n\u01b0\u1edbc t\u1ea1i L\u1ed9c Thi\u00ean, b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c h\u01b0\u1edfng nh\u1eefng \u01b0u \u0111\u00e3i v\u1edbi gi\u00e1 c\u1ea3 t\u1ed1t nh\u1ea5t tr\u00ean th\u1ecb tr\u01b0\u1eddng, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi nh\u1eefng \u0111\u01a1n \u0111\u1eb7t h\u00e0ng c\u00f3 s\u1ed1 l\u01b0\u1ee3ng l\u1edbn. N\u1ebfu c\u1ea7n tham kh\u1ea3o th\u00f4ng tin chi ti\u1ebft v\u1ec1 <strong><a href=\"https:\/\/hoachatlocthien.com\/zh\/xut-naoh\/\" target=\"_new\" rel=\"noopener\">gi\u00e1 x\u00fat NaOH<\/a><\/strong> ho\u1eb7c c\u00e1c d\u1ecbch v\u1ee5 \u0111i k\u00e8m, qu\u00fd kh\u00e1ch h\u00e3y li\u00ean h\u1ec7 ngay \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n t\u1eadn t\u00ecnh. <\/p><p>Ch\u00fang t\u00f4i cung c\u1ea5p d\u1ecbch v\u1ee5 giao h\u00e0ng t\u1eadn n\u01a1i v\u1edbi m\u1ed9t \u0111\u1ed9i ng\u0169 v\u1eadn chuy\u1ec3n chuy\u00ean nghi\u1ec7p v\u00e0 t\u1eadn t\u00e2m. Ch\u00fang t\u00f4i cam k\u1ebft mang \u0111\u1ebfn cho qu\u00fd kh\u00e1ch h\u00e0ng s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng, \u0111\u00f3ng g\u00f3i k\u0129 c\u00e0ng, v\u00e0 giao nhanh ch\u00f3ng, k\u00e8m theo h\u00ecnh th\u1ee9c thanh to\u00e1n ti\u1ec7n l\u1ee3i. Ch\u00fang t\u00f4i mong qu\u00fd kh\u00e1ch \u0111\u00e3 gi\u1ea3i \u0111\u00e1p \u0111\u01b0\u1ee3c kh\u00fac m\u1eafc mua x\u00fat naoh \u1edf \u0111\u00e2u, v\u00ec v\u1eady vui l\u00f2ng li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i qua s\u1ed1 <strong>HOTLINE 0979 89 1929<\/strong> \u0111\u1ec3 nh\u1eadn t\u01b0 v\u1ea5n v\u00e0 \u0111\u1eb7t h\u00e0ng tr\u1ef1c tuy\u1ebfn nh\u00e9.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"1120\" height=\"700\" data-sizes=\"(max-width: 1120px) 100vw, 1120px\" data-src=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/12\/loc-thien.png\" alt=\"\" class=\"wp-image-1546 lazyload\" data-srcset=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/12\/loc-thien.png 1120w, https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/12\/loc-thien-500x313.png 500w\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 1120px; --smush-placeholder-aspect-ratio: 1120\/700;\" \/><\/figure><\/div><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><div class=\"row row-collapse row-full-width\"  id=\"row-406714253\">\n\n\n\t<div id=\"col-217308187\" class=\"col medium-6 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p><strong>\u6d1b\u5929\u6295\u8d44\u53d1\u5c55\u6709\u9650\u516c\u53f8<\/strong><\/p>\n<ul>\n<li><strong>\u5730\u5740\uff1a\u00a0<\/strong>\u80e1\u5fd7\u660e\u5e02\u5e73\u65b0\u90e1\u5e73\u6cbb\u4e1c\u574a10\u53f7\u7701\u90536B\u680b452\u53f7<\/li>\n<li><strong>\u7535\u8bdd<\/strong> 028 6269 5669 - \u00a0028 6269 5662<\/li>\n<li><strong>\u7f51\u7ad9<\/strong> <a href=\"https:\/\/hoachatlocthien.com\/zh\/\" target=\"_blank\" rel=\"noopener\">hoachatlocthien.com<\/a><\/li>\n<li><strong>\u4f20\u771f\uff1a\u00a0<\/strong>028 6269 5662 -\u00a0<strong>\u70ed\u7ebf<\/strong>: <a href=\"tel:0979891929\">0979 89 19 29<\/a><\/li>\n<\/ul>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-847717692\" class=\"col medium-6 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p><strong>\u5206\u652f\u673a\u6784\u548c\u4ed3\u5e93<\/strong><\/p>\n<ul>\n<li><strong>\u7bb1 1<\/strong>\u798f\u5174\u6751\uff0c\u7f8e\u6625\u4e61\uff0c\u65b0\u6210\u53bf\uff0c\u5df4\u5730-\u5934\u987f\u7701<\/li>\n<li><strong>\u7b2c 2 \u4ed3\u5e93<\/strong>\u798f\u6cf0\uff0c\u5e73\u798f\uff0c\u9686\u6210\u53bf\uff0c\u540c\u5948\u7701<\/li>\n<li><strong>\u4ed3\u5e93 3<\/strong>\u5e73\u9633\u7701\uff0c\u4ee5\u5b89\u5e02\uff0c\u65b0\u4e1c\u534fB\u5de5\u4e1a\u533a\u3002 .<\/li>\n<li><strong>\u7b2c\u56db\u4ed3\u5e93<\/strong>\u548c\u5e86\u533a\uff0c\u5c98\u6e2f<\/li>\n<li><strong>\u7b2c5\u6bb5<\/strong> \u82b9\u82f4\u5e02,  \u00f4 m\u00f4n \u533a, ph\u01b0\u1edbc th\u1edbi \u574a, \u00f4 m\u00f4n \u6e2f<\/li>\n<li><strong>\u7b2c6\u5e93<\/strong> KCN \u0110\u1ea1i \u0110\u1ed3ng - Ho\u00e0n S\u01a1n\uff0c\u4ed9\u6e38\u53bf\uff0c\u5317\u5b81\u7701<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<p><iframe style=\"border: 0;\" data-src=\"https:\/\/www.google.com\/maps\/embed?pb=!1m14!1m8!1m3!1d501722.0146604921!2d106.620075!3d10.757339!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x31752c2e56f3cff7%3A0x39eeb29d74c428f2!2zQ8O0bmcgdHkgSG_DoSBDaOG6pXQgTOG7mWMgVGhpw6pu!5e0!3m2!1svi!2sus!4v1697254383560!5m2!1svi!2sus\" width=\"100%\" height=\"500\" allowfullscreen=\"allowfullscreen\" title=\"Google \u5730\u56fe \u6d1b\u5929\u5316\u5de5\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe><\/p><div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list\">\n<div id=\"faq-question-1739409397961\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\"><span class=\"ez-toc-section\" id=\"Co_the_thay_the_xut_NaOH_bang_hoa_chat_khac_trong_san_xuat_giay_khong\"><\/span>C\u00f3 th\u1ec3 thay th\u1ebf x\u00fat NaOH b\u1eb1ng h\u00f3a ch\u1ea5t kh\u00e1c trong s\u1ea3n xu\u1ea5t gi\u1ea5y kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer\">\n\n<p>X\u00fat NaOH c\u00f3 vai tr\u00f2 <strong>quan tr\u1ecdng trong s\u1ea3n xu\u1ea5t gi\u1ea5y<\/strong>, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong qu\u00e1 tr\u00ecnh <strong>lo\u1ea1i b\u1ecf lignin<\/strong> \u548c <strong>t\u1ea9y tr\u1eafng b\u1ed9t gi\u1ea5y<\/strong>. Tuy nhi\u00ean, m\u1ed9t s\u1ed1 doanh nghi\u1ec7p \u0111ang t\u00ecm ki\u1ebfm c\u00e1c <strong>h\u00f3a ch\u1ea5t thay th\u1ebf th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng<\/strong> nh\u01b0:<br \/>+ <strong>Amoni Hydroxit (NH\u2084OH)<\/strong>: C\u00f3 th\u1ec3 thay th\u1ebf trong m\u1ed9t s\u1ed1 c\u00f4ng \u0111o\u1ea1n nh\u01b0ng hi\u1ec7u qu\u1ea3 kh\u00f4ng cao b\u1eb1ng NaOH.<br \/>+ <strong>Canxi Hydroxit (Ca(OH)\u2082)<\/strong>: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t s\u1ed1 quy tr\u00ecnh x\u1eed l\u00fd gi\u1ea5y nh\u01b0ng c\u00f3 \u0111\u1ed9 ki\u1ec1m th\u1ea5p h\u01a1n NaOH.<br \/>+ <strong>Hydrogen Peroxide (H\u2082O\u2082)<\/strong>: \u0110\u01b0\u1ee3c d\u00f9ng trong qu\u00e1 tr\u00ecnh <strong>t\u1ea9y tr\u1eafng b\u1ed9t gi\u1ea5y<\/strong> nh\u01b0ng kh\u00f4ng th\u1ec3 thay th\u1ebf ho\u00e0n to\u00e0n NaOH.<br \/>=&gt; <strong>T\u00f3m l\u1ea1i<\/strong>: Hi\u1ec7n nay, ch\u01b0a c\u00f3 ch\u1ea5t thay th\u1ebf n\u00e0o c\u00f3 th\u1ec3 ho\u00e0n to\u00e0n thay th\u1ebf NaOH v\u1edbi <strong>hi\u1ec7u su\u1ea5t v\u00e0 chi ph\u00ed h\u1ee3p l\u00fd<\/strong> trong s\u1ea3n xu\u1ea5t gi\u1ea5y.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1739409417608\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\"><span class=\"ez-toc-section\" id=\"Xut_NaOH_co_the_tai_su_dung_trong_quy_trinh_san_xuat_giay_khong\"><\/span>X\u00fat NaOH c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer\">\n\n<p>Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y, <strong>vi\u1ec7c t\u00e1i s\u1eed d\u1ee5ng NaOH<\/strong> \u0111ang \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u \u0111\u1ec3 <strong>gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng<\/strong> v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed s\u1ea3n xu\u1ea5t. M\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p t\u00e1i s\u1eed d\u1ee5ng bao g\u1ed3m:<br \/>+ <strong>Thu h\u1ed3i x\u00fat t\u1eeb n\u01b0\u1edbc th\u1ea3i<\/strong>: B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng l\u1ecdc v\u00e0 trung h\u00f2a ki\u1ec1m, c\u00f3 th\u1ec3 thu h\u1ed3i m\u1ed9t ph\u1ea7n NaOH t\u1eeb n\u01b0\u1edbc th\u1ea3i c\u00f4ng nghi\u1ec7p.<br \/>+ <strong>Quy tr\u00ecnh kraft t\u00e1i ch\u1ebf h\u00f3a ch\u1ea5t<\/strong>: Trong s\u1ea3n xu\u1ea5t gi\u1ea5y kraft, NaOH \u0111\u01b0\u1ee3c t\u00e1i s\u1eed d\u1ee5ng th\u00f4ng qua quy tr\u00ecnh <strong>thu h\u1ed3i h\u00f3a ch\u1ea5t<\/strong> t\u1eeb d\u1ecbch \u0111en (black liquor).<br \/>+ <strong>X\u00fat NaOH t\u00e1i ch\u1ebf t\u1eeb t\u00e1i ch\u1ebf gi\u1ea5y<\/strong>: Khi t\u00e1i ch\u1ebf gi\u1ea5y, x\u00fat c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ecdc v\u00e0 t\u00e1i s\u1eed d\u1ee5ng trong <strong>c\u00f4ng \u0111o\u1ea1n kh\u1eed m\u1ef1c<\/strong>.<br \/>\ud83d\udd39 <strong>L\u01b0u \u00fd<\/strong>: Qu\u00e1 tr\u00ecnh thu h\u1ed3i NaOH \u0111\u00f2i h\u1ecfi <strong>c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i<\/strong> \u548c <strong>chi ph\u00ed \u0111\u1ea7u t\u01b0 l\u1edbn<\/strong>, v\u00ec v\u1eady ch\u01b0a \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong t\u1ea5t c\u1ea3 c\u00e1c nh\u00e0 m\u00e1y gi\u1ea5y.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1739409434766\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\"><span class=\"ez-toc-section\" id=\"Lam_the_nao_de_bao_quan_xut_NaOH_an_toan_trong_nha_may_san_xuat_giay\"><\/span><strong>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 b\u1ea3o qu\u1ea3n x\u00fat NaOH an to\u00e0n trong nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t gi\u1ea5y?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer\">\n\n<p>X\u00fat NaOH l\u00e0 m\u1ed9t h\u00f3a ch\u1ea5t <strong>h\u00fat \u1ea9m m\u1ea1nh<\/strong> v\u00e0 c\u00f3 t\u00ednh <strong>\u0103n m\u00f2n cao<\/strong>, v\u00ec v\u1eady c\u1ea7n b\u1ea3o qu\u1ea3n \u0111\u00fang c\u00e1ch \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o <strong>an to\u00e0n lao \u0111\u1ed9ng<\/strong> \u548c <strong>ch\u1ea5t l\u01b0\u1ee3ng h\u00f3a ch\u1ea5t<\/strong>. M\u1ed9t s\u1ed1 l\u01b0u \u00fd khi b\u1ea3o qu\u1ea3n NaOH trong nh\u00e0 m\u00e1y gi\u1ea5y:<br \/>+ <strong>S\u1eed d\u1ee5ng b\u1ed3n ch\u1ee9a k\u00edn kh\u00ed<\/strong>: \u0110\u1ec3 tr\u00e1nh h\u1ea5p th\u1ee5 CO\u2082 t\u1eeb kh\u00f4ng kh\u00ed, g\u00e2y gi\u1ea3m hi\u1ec7u qu\u1ea3 c\u1ee7a NaOH.<br \/>+ <strong>Nhi\u1ec7t \u0111\u1ed9 b\u1ea3o qu\u1ea3n h\u1ee3p l\u00fd<\/strong>: Dung d\u1ecbch NaOH <strong>kh\u00f4ng n\u00ean ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao<\/strong> \u0111\u1ec3 tr\u00e1nh bi\u1ebfn \u0111\u1ed5i h\u00f3a h\u1ecdc.<br \/>+ <strong>Tr\u00e1nh ti\u1ebfp x\u00fac v\u1edbi kim lo\u1ea1i nh\u1eb9 (nh\u00f4m, k\u1ebdm, thi\u1ebfc)<\/strong>: V\u00ec c\u00f3 th\u1ec3 g\u00e2y ph\u1ea3n \u1ee9ng sinh kh\u00ed hydro d\u1ec5 ch\u00e1y n\u1ed5.<br \/>+ <strong>\u0110\u1eb7t c\u1ea3nh b\u00e1o an to\u00e0n<\/strong>: Trong khu v\u1ef1c l\u01b0u tr\u1eef NaOH \u0111\u1ec3 nh\u1eafc nh\u1edf nh\u00e2n vi\u00ean tu\u00e2n th\u1ee7 quy tr\u00ecnh an to\u00e0n.<br \/>\ud83d\udd39 <strong>L\u01b0u \u00fd quan tr\u1ecdng<\/strong>: Lu\u00f4n s\u1eed d\u1ee5ng <strong>g\u0103ng tay, k\u00ednh b\u1ea3o h\u1ed9, qu\u1ea7n \u00e1o b\u1ea3o h\u1ed9<\/strong> khi l\u00e0m vi\u1ec7c v\u1edbi NaOH \u0111\u1ec3 tr\u00e1nh b\u1ecb b\u1ecfng h\u00f3a ch\u1ea5t.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1739409455998\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\"><span class=\"ez-toc-section\" id=\"Dung_dich_NaOH_co_han_su_dung_khong_Khi_nao_can_thay_the\"><\/span>Dung d\u1ecbch NaOH c\u00f3 h\u1ea1n s\u1eed d\u1ee5ng kh\u00f4ng? Khi n\u00e0o c\u1ea7n thay th\u1ebf?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer\">\n\n<p>M\u1eb7c d\u00f9 x\u00fat NaOH c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh cao, nh\u01b0ng <strong>dung d\u1ecbch NaOH<\/strong> v\u1eabn c\u00f3 th\u1ec3 b\u1ecb gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng theo th\u1eddi gian n\u1ebfu kh\u00f4ng b\u1ea3o qu\u1ea3n \u0111\u00fang c\u00e1ch. M\u1ed9t s\u1ed1 d\u1ea5u hi\u1ec7u cho th\u1ea5y dung d\u1ecbch NaOH <strong>c\u1ea7n thay th\u1ebf<\/strong>:<br \/>+ <strong>M\u00e0u s\u1eafc thay \u0111\u1ed5i<\/strong>: N\u1ebfu dung d\u1ecbch NaOH chuy\u1ec3n sang m\u00e0u <strong>v\u00e0ng n\u00e2u<\/strong> ho\u1eb7c c\u00f3 t\u1ea1p ch\u1ea5t l\u1eafng xu\u1ed1ng \u0111\u00e1y, c\u00f3 th\u1ec3 do ph\u1ea3n \u1ee9ng v\u1edbi CO\u2082 trong kh\u00f4ng kh\u00ed.<br \/>+ <strong>\u0110\u1ed9 pH gi\u1ea3m<\/strong>: Khi ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed l\u00e2u ng\u00e0y, NaOH c\u00f3 th\u1ec3 <strong>h\u1ea5p th\u1ee5 CO\u2082<\/strong>, l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 ki\u1ec1m h\u00f3a.<br \/>+ <strong>Dung d\u1ecbch m\u1ea5t \u0111\u1ed9 nh\u1edbt<\/strong>: N\u1ebfu NaOH <strong>lo\u00e3ng h\u01a1n so v\u1edbi ban \u0111\u1ea7u<\/strong>, c\u00f3 th\u1ec3 do b\u1ecb pha lo\u00e3ng b\u1edfi h\u01a1i n\u01b0\u1edbc ho\u1eb7c t\u00e1c nh\u00e2n kh\u00e1c.<br \/>\ud83d\udd39 <strong>Khuy\u1ebfn ngh\u1ecb<\/strong>: N\u00ean s\u1eed d\u1ee5ng dung d\u1ecbch NaOH <strong>trong v\u00f2ng 6-12 th\u00e1ng<\/strong> sau khi m\u1edf n\u1eafp \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1i \u01b0u.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1739409471605\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\"><span class=\"ez-toc-section\" id=\"Xut_NaOH_co_gay_o_nhiem_moi_truong_khong_Lam_the_nao_de_xu_ly_nuoc_thai_chua_NaOH_an_toan\"><\/span>X\u00fat NaOH c\u00f3 g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng kh\u00f4ng? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i ch\u1ee9a NaOH an to\u00e0n?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer\">\n\n<p>NaOH l\u00e0 m\u1ed9t <strong>h\u00f3a ch\u1ea5t c\u00f3 t\u00ednh \u0103n m\u00f2n m\u1ea1nh<\/strong>, c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn <strong>h\u1ec7 sinh th\u00e1i<\/strong> n\u1ebfu b\u1ecb th\u1ea3i ra m\u00f4i tr\u01b0\u1eddng m\u00e0 kh\u00f4ng qua x\u1eed l\u00fd. M\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p <strong>x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i ch\u1ee9a NaOH<\/strong>:<br \/>+ <strong>Trung h\u00f2a v\u1edbi axit y\u1ebfu (HCl, H\u2082SO\u2084 lo\u00e3ng)<\/strong>: Gi\u00fap gi\u1ea3m \u0111\u1ed9 ki\u1ec1m v\u00e0 \u0111\u01b0a pH v\u1ec1 m\u1ee9c trung t\u00ednh (~7).<br \/>+ <strong>Pha lo\u00e3ng tr\u01b0\u1edbc khi th\u1ea3i ra m\u00f4i tr\u01b0\u1eddng<\/strong>: N\u1ebfu n\u1ed3ng \u0111\u1ed9 NaOH qu\u00e1 cao, c\u1ea7n pha lo\u00e3ng v\u1edbi n\u01b0\u1edbc \u0111\u1ec3 tr\u00e1nh g\u00e2y h\u1ea1i cho ngu\u1ed3n n\u01b0\u1edbc t\u1ef1 nhi\u00ean.<br \/>+ <strong>S\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/strong>: C\u00e1c nh\u00e0 m\u00e1y gi\u1ea5y th\u01b0\u1eddng l\u1eafp \u0111\u1eb7t <strong>h\u1ec7 th\u1ed1ng l\u1ecdc v\u00e0 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/strong> \u0111\u1ec3 thu h\u1ed3i NaOH v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<br \/><strong>+ Tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh an to\u00e0n m\u00f4i tr\u01b0\u1eddng<\/strong>: C\u00e1c doanh nghi\u1ec7p ph\u1ea3i <strong>\u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n QCVN<\/strong> v\u1ec1 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i c\u00f4ng nghi\u1ec7p.<br \/>\ud83d\udd39 <strong>L\u01b0u \u00fd<\/strong>: Tuy NaOH kh\u00f4ng g\u00e2y \u00f4 nhi\u1ec5m h\u1eefu c\u01a1, nh\u01b0ng n\u1ebfu th\u1ea3i ra v\u1edbi n\u1ed3ng \u0111\u1ed9 cao c\u00f3 th\u1ec3 <strong>g\u00e2y h\u1ea1i cho sinh v\u1eadt th\u1ee7y sinh<\/strong> v\u00e0 l\u00e0m m\u1ea5t c\u00e2n b\u1eb1ng sinh th\u00e1i.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>H\u00f3a Ch\u1ea5t X\u00fat NaOH l\u00e0 m\u1ed9t h\u00f3a ch\u1ea5t v\u00f4 c\u00f9ng \u0111a n\u0103ng v\u00e0 h\u1eefu d\u1ee5ng trong \u0111\u1eddi s\u1ed1ng h\u1eb1ng ng\u00e0y, v\u00e0 n\u1ebfu b\u1ea1n mu\u1ed1n t\u00ecm hi\u1ec3u NaOH 45% l\u00e0 g\u00ec, b\u00e0i vi\u1ebft li\u00ean quan t\u1ea1i L\u1ed9c Thi\u00ean s\u1ebd r\u1ea5t h\u1eefu \u00edch. M\u1ed9t trong nh\u1eefng \u1ee9ng d\u1ee5ng ch\u00ednh c\u1ee7a NaOH l\u00e0 trong c\u00f4ng nghi\u1ec7p l\u00e0m gi\u1ea5y. [&#8230;]\n","protected":false},"author":2,"featured_media":2775,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-2770","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/posts\/2770","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/comments?post=2770"}],"version-history":[{"count":4,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/posts\/2770\/revisions"}],"predecessor-version":[{"id":5487,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/posts\/2770\/revisions\/5487"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/media\/2775"}],"wp:attachment":[{"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/media?parent=2770"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/categories?post=2770"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/tags?post=2770"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}