{"id":9048,"date":"2026-05-06T08:00:00","date_gmt":"2026-05-06T08:00:00","guid":{"rendered":"https:\/\/hoachatlocthien.com\/javen-10-12-xu-ly-nuoc-thai\/"},"modified":"2026-05-06T08:00:00","modified_gmt":"2026-05-06T08:00:00","slug":"javen-10-12-xu-ly-nuoc-thai-2","status":"publish","type":"post","link":"https:\/\/hoachatlocthien.com\/en\/javen-10-12-xu-ly-nuoc-thai-2","title":{"rendered":"Javen 10\u201312% Trong X\u1eed L\u00fd N\u01b0\u1edbc Th\u1ea3i: C\u01a1 Ch\u1ebf, Li\u1ec1u D\u00f9ng, L\u01b0u \u00dd"},"content":{"rendered":"<article>\n<header class=\"hero\">\n<div class=\"kicker\">Javen x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/div>\n<h1>Javen 10\u201312% Trong X\u1eed L\u00fd N\u01b0\u1edbc Th\u1ea3i: C\u01a1 Ch\u1ebf, Li\u1ec1u D\u00f9ng, L\u01b0u \u00dd<\/h1>\n<p class=\"meta\">Bien soan boi doi ngu ky thuat <strong>Hoa Chat Loc Thien<\/strong>.<\/p>\n<p><strong>Javen 10\u201312% (NaOCl)<\/strong> l\u00e0 ch\u1ea5t kh\u1eed tr\u00f9ng ph\u1ed5 bi\u1ebfn nh\u1ea5t \u1edf kh\u00e2u cu\u1ed1i c\u1ee7a h\u1ec7 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i, gi\u00fap lo\u1ea1i b\u1ecf vi khu\u1ea9n, virus, k\u00fd sinh tr\u00f9ng tr\u01b0\u1edbc khi x\u1ea3 ra m\u00f4i tr\u01b0\u1eddng.<\/p>\n<p class=\"note\">Noi dung tham khao, vui long doi chieu MSDS.<\/p>\n<\/header>\n<figure><img decoding=\"async\" class=\"thumb lazyload\" data-src=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/12\/Javen.webp\" alt=\"Ho\u00e1 ch\u1ea5t Javen 10% -12 % m\u00e0u v\u00e0ng nh\u1ea1t\" width=\"900\" height=\"500\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 900px; --smush-placeholder-aspect-ratio: 900\/500;\"><figcaption class=\"meta\" style=\"text-align:center\">Ho\u00e1 ch\u1ea5t Javen 10% -12 % m\u00e0u v\u00e0ng nh\u1ea1t<\/figcaption><\/figure>\n<div class=\"tag-list\"><span>Javen x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/span><span>NaOCl kh\u1eed tr\u00f9ng<\/span><span>Javen 10-12%<\/span><span>kh\u1eed tr\u00f9ng n\u01b0\u1edbc th\u1ea3i<\/span><span>Cl d\u01b0 n\u01b0\u1edbc th\u1ea3i<\/span><\/div>\n<section id=\"co-che\">\n<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\">N\u1ed9i dung<\/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;\">Toggle<\/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\/en\/javen-10-12-xu-ly-nuoc-thai-2\/#1_Co_che_khu_trung_cua_Javen_trong_xu_ly_nuoc_thai\" title=\"1. C\u01a1 ch\u1ebf kh\u1eed tr\u00f9ng c\u1ee7a Javen trong x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i\">1. C\u01a1 ch\u1ebf kh\u1eed tr\u00f9ng c\u1ee7a Javen trong x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hoachatlocthien.com\/en\/javen-10-12-xu-ly-nuoc-thai-2\/#2_Lieu_Javen_10%E2%80%9312_cho_xu_ly_nuoc_thai\" title=\"2. Li\u1ec1u Javen 10\u201312% cho x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i\">2. Li\u1ec1u Javen 10\u201312% cho x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hoachatlocthien.com\/en\/javen-10-12-xu-ly-nuoc-thai-2\/#3_Luu_y_ky_thuat_khi_van_hanh\" title=\"3. L\u01b0u \u00fd k\u1ef9 thu\u1eadt khi v\u1eadn h\u00e0nh\">3. L\u01b0u \u00fd k\u1ef9 thu\u1eadt khi v\u1eadn h\u00e0nh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hoachatlocthien.com\/en\/javen-10-12-xu-ly-nuoc-thai-2\/#4_Khi_nao_nen_thay_Javen_bang_giai_phap_khac\" title=\"4. Khi n\u00e0o n\u00ean thay Javen b\u1eb1ng gi\u1ea3i ph\u00e1p kh\u00e1c?\">4. Khi n\u00e0o n\u00ean thay Javen b\u1eb1ng gi\u1ea3i ph\u00e1p kh\u00e1c?<\/a><\/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\/en\/javen-10-12-xu-ly-nuoc-thai-2\/#Lien_he_Hoa_Chat_Loc_Thien\" title=\"Lien he Hoa Chat Loc Thien\">Lien he Hoa Chat Loc Thien<\/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\/en\/javen-10-12-xu-ly-nuoc-thai-2\/#FAQ\" title=\"FAQ\">FAQ<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"1_Co_che_khu_trung_cua_Javen_trong_xu_ly_nuoc_thai\"><\/span>1. C\u01a1 ch\u1ebf kh\u1eed tr\u00f9ng c\u1ee7a Javen trong x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>NaOCl tan trong n\u01b0\u1edbc t\u1ea1o HOCl\/OCl- \u2014 ch\u1ea5t oxy h\u00f3a m\u1ea1nh t\u1ea5n c\u00f4ng th\u00e0nh t\u1ebf b\u00e0o vi khu\u1ea9n, oxy h\u00f3a enzyme v\u00e0 ADN. Hi\u1ec7u qu\u1ea3 t\u1ed1t nh\u1ea5t \u1edf pH 6,5-8,0 n\u01a1i HOCl chi\u1ebfm t\u1ef7 l\u1ec7 cao.<\/p>\n<\/section>\n<section id=\"lieu-dung\">\n<h2><span class=\"ez-toc-section\" id=\"2_Lieu_Javen_10%E2%80%9312_cho_xu_ly_nuoc_thai\"><\/span>2. Li\u1ec1u Javen 10\u201312% cho x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table class='specs'>\n<tr>\n<th>Lo\u1ea1i n\u01b0\u1edbc th\u1ea3i<\/th>\n<th>Li\u1ec1u Javen 10-12% (mL\/m\u00b3)<\/th>\n<th>Cl d\u01b0 (mg\/L)<\/th>\n<\/tr>\n<tr>\n<td>Sinh ho\u1ea1t sau x\u1eed l\u00fd sinh h\u1ecdc<\/td>\n<td>30-100<\/td>\n<td>0,5-2,0<\/td>\n<\/tr>\n<tr>\n<td>Y t\u1ebf (b\u1ec7nh vi\u1ec7n)<\/td>\n<td>100-300<\/td>\n<td>2-5<\/td>\n<\/tr>\n<tr>\n<td>L\u00f2 m\u1ed5, th\u1ef1c ph\u1ea9m<\/td>\n<td>100-200<\/td>\n<td>1-3<\/td>\n<\/tr>\n<tr>\n<td>C\u00f4ng nghi\u1ec7p d\u1ec7t nhu\u1ed9m<\/td>\n<td>50-150<\/td>\n<td>0,5-2,0<\/td>\n<\/tr>\n<\/table>\n<\/section>\n<figure style=\"margin:18px 0;text-align:center;\"><img decoding=\"async\" class=\"thumb lazyload\" data-src=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/12\/nuoc-Javen.webp\" alt=\"n\u01b0\u1edbc Javen 10%\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\"><figcaption class=\"meta\">n\u01b0\u1edbc Javen 10%<\/figcaption><\/figure>\n<section id=\"luu-y\">\n<h2><span class=\"ez-toc-section\" id=\"3_Luu_y_ky_thuat_khi_van_hanh\"><\/span>3. L\u01b0u \u00fd k\u1ef9 thu\u1eadt khi v\u1eadn h\u00e0nh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>B\u1ec3 ti\u1ebfp x\u00fac Cl-water t\u1ed1i thi\u1ec3u 30 ph\u00fat \u0111\u1ec3 kh\u1eed tr\u00f9ng tri\u1ec7t \u0111\u1ec3.<\/li>\n<li>Ki\u1ec3m tra Cl d\u01b0 b\u1eb1ng test kit DPD ho\u1eb7c \u0111\u1ea7u d\u00f2 online.<\/li>\n<li>B\u1ed3n HDPE c\u00f3 van tho\u00e1t O2, \u0111\u1eb7t n\u01a1i m\u00e1t.<\/li>\n<li>Khi x\u1ea3 ra m\u00f4i tr\u01b0\u1eddng, Cl d\u01b0 ph\u1ea3i \u2264 gi\u1edbi h\u1ea1n QCVN (th\u01b0\u1eddng 1 mg\/L).<\/li>\n<li>C\u00f3 th\u1ec3 trung h\u00f2a Cl d\u01b0 b\u1eb1ng Na2S2O3 n\u1ebfu c\u1ea7n.<\/li>\n<\/ul>\n<\/section>\n<section id=\"thay-the\">\n<h2><span class=\"ez-toc-section\" id=\"4_Khi_nao_nen_thay_Javen_bang_giai_phap_khac\"><\/span>4. Khi n\u00e0o n\u00ean thay Javen b\u1eb1ng gi\u1ea3i ph\u00e1p kh\u00e1c?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Javen t\u1ea1o s\u1ea3n ph\u1ea9m ph\u1ee5 THM, AOX c\u00f3 th\u1ec3 kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi ngu\u1ed3n x\u1ea3 nh\u1ea1y c\u1ea3m. Trong tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3, c\u00f3 th\u1ec3 d\u00f9ng UV, ClO2, ozone ho\u1eb7c PAA. Javen v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn kinh t\u1ebf nh\u1ea5t cho ph\u1ea7n l\u1edbn h\u1ec7 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i.<\/p>\n<\/section>\n<section id=\"lien-he\">\n<h2><span class=\"ez-toc-section\" id=\"Lien_he_Hoa_Chat_Loc_Thien\"><\/span>Lien he Hoa Chat Loc Thien<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Doi ngu ky thuat <strong>Hoa Chat Loc Thien<\/strong> san sang ho tro doanh nghiep.<\/p>\n<ul>\n<li>Hotline: <a href=\"tel:0979891929\">0979 89 1929<\/a><\/li>\n<li>Email: <a href=\"mailto:locthien@locthien.vn\">locthien@locthien.vn<\/a><\/li>\n<li>Website: <a href=\"https:\/\/hoachatlocthien.com\/\">hoachatlocthien.com\/<\/a><\/li>\n<\/ul>\n<\/section>\n<section id=\"faq\" class=\"faq\">\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li><strong>Li\u1ec1u Javen 10-12% cho kh\u1eed tr\u00f9ng n\u01b0\u1edbc th\u1ea3i sinh ho\u1ea1t?<\/strong><br \/>30-100 mL Javen 10-12% m\u1ed7i m\u00b3 n\u01b0\u1edbc, \u0111\u1ea3m b\u1ea3o Cl d\u01b0 0,5-2,0 mg\/L sau b\u1ec3 ti\u1ebfp x\u00fac 30 ph\u00fat. C\u1ea7n \u0111i\u1ec1u ch\u1ec9nh theo BOD\/COD \u0111\u1ea7u v\u00e0o v\u00e0 ti\u00eau chu\u1ea9n x\u1ea3 th\u1ea3i.<\/li>\n<li><strong>V\u00ec sao c\u1ea7n b\u1ec3 ti\u1ebfp x\u00fac Cl-water 30 ph\u00fat?<\/strong><br \/>\u0110\u1ec3 Javen c\u00f3 \u0111\u1ee7 th\u1eddi gian oxy h\u00f3a th\u00e0nh t\u1ebf b\u00e0o v\u00e0 ADN c\u1ee7a vi khu\u1ea9n. Th\u1eddi gian ti\u1ebfp x\u00fac ng\u1eafn kh\u00f4ng \u0111\u1ea3m b\u1ea3o kh\u1eed tr\u00f9ng tri\u1ec7t \u0111\u1ec3.<\/li>\n<li><strong>Cl d\u01b0 bao nhi\u00eau l\u00e0 \u0111\u1ea1t chu\u1ea9n x\u1ea3 th\u1ea3i?<\/strong><br \/>Theo QCVN 40:2011\/BTNMT, Cl d\u01b0 trong n\u01b0\u1edbc x\u1ea3 ph\u1ea3i \u2264 1 mg\/L (c\u1ed9t B) ho\u1eb7c \u2264 2 mg\/L (c\u1ed9t A). C\u00f3 th\u1ec3 trung h\u00f2a Cl d\u01b0 b\u1eb1ng Na2S2O3 n\u1ebfu v\u01b0\u1ee3t.<\/li>\n<li><strong>Javen c\u00f3 g\u00e2y h\u1ea1i cho h\u1ec7 vi sinh n\u1ebfu d\u00f9ng tr\u01b0\u1edbc b\u1ec3 sinh h\u1ecdc kh\u00f4ng?<\/strong><br \/>C\u00f3. Javen s\u1ebd ti\u00eau di\u1ec7t vi sinh trong b\u1ec3 MBBR\/aerotank. V\u00ec v\u1eady Javen ch\u1ec9 d\u00f9ng \u1edf kh\u00e2u cu\u1ed1i, sau b\u1ec3 sinh h\u1ecdc v\u00e0 b\u1ec3 l\u1eafng.<\/li>\n<li><strong>L\u1ed9c Thi\u00ean c\u00f3 cung c\u1ea5p Javen 10-12% cho h\u1ec7 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i KCN kh\u00f4ng?<\/strong><br \/>C\u00f3. L\u1ed9c Thi\u00ean giao Javen 10-12% b\u1eb1ng IBC 1.000L ho\u1eb7c xe b\u1ed3n cho c\u00e1c h\u1ec7 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i KCN t\u1ea1i mi\u1ec1n Nam, \u0111\u1ea7y \u0111\u1ee7 phi\u1ebfu test n\u1ed3ng \u0111\u1ed9 Cl t\u1eebng l\u00f4.<\/li>\n<\/ol>\n<\/section>\n<\/article>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Organization\",\n      \"@id\": \"https:\/\/hoachatlocthien.com\/#org\",\n      \"name\": \"Hoa Chat Loc Thien\",\n      \"url\": \"https:\/\/hoachatlocthien.com\/\",\n      \"logo\": \"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2025\/02\/logo-locthien.png\",\n      \"telephone\": \"+84979891929\",\n      \"email\": \"locthien@locthien.vn\"\n    },\n    {\n      \"@type\": \"BreadcrumbList\",\n      \"@id\": \"https:\/\/hoachatlocthien.com\/javen-10-12-xu-ly-nuoc-thai\/#breadcrumb\",\n      \"itemListElement\": [\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 1,\n          \"name\": \"Trang chu\",\n          \"item\": \"https:\/\/hoachatlocthien.com\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 2,\n          \"name\": \"H\u00f3a ch\u1ea5t x\u1eed l\u00fd n\u01b0\u1edbc\",\n          \"item\": \"https:\/\/hoachatlocthien.com\/kien-thuc-hoa-chat\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 3,\n          \"name\": \"Javen 10\u201312% Trong X\u1eed L\u00fd N\u01b0\u1edbc Th\u1ea3i: C\u01a1 Ch\u1ebf, Li\u1ec1u D\u00f9ng, L\u01b0u \u00dd\",\n          \"item\": \"https:\/\/hoachatlocthien.com\/javen-10-12-xu-ly-nuoc-thai\/\"\n        }\n      ]\n    },\n    {\n      \"@type\": \"Article\",\n      \"@id\": \"https:\/\/hoachatlocthien.com\/javen-10-12-xu-ly-nuoc-thai\/#article\",\n      \"headline\": \"Javen 10\u201312% Trong X\u1eed L\u00fd N\u01b0\u1edbc Th\u1ea3i: C\u01a1 Ch\u1ebf, Li\u1ec1u D\u00f9ng, L\u01b0u \u00dd\",\n      \"description\": \"Javen 10\u201312% trong x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i d\u00f9ng \u0111\u1ec3 kh\u1eed tr\u00f9ng n\u01b0\u1edbc \u0111\u1ea7u ra, oxy h\u00f3a h\u1eefu c\u01a1, ki\u1ec3m so\u00e1t m\u00f9i. H\u01b0\u1edbng d\u1eabn li\u1ec1u d\u00f9ng v\u00e0 l\u01b0u \u00fd k\u1ef9 thu\u1eadt cho h\u1ec7 v\u1eadn h\u00e0nh.\",\n      \"image\": \"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/12\/Javen.webp\",\n      \"datePublished\": \"2026-05-06T08:00:00+07:00\",\n      \"dateModified\": \"2026-05-06T08:00:00+07:00\",\n      \"author\": {\n        \"@type\": \"Organization\",\n        \"@id\": \"https:\/\/hoachatlocthien.com\/#org\",\n        \"name\": \"Hoa Chat Loc Thien\"\n      },\n      \"publisher\": {\n        \"@type\": \"Organization\",\n        \"@id\": \"https:\/\/hoachatlocthien.com\/#org\"\n      },\n      \"mainEntityOfPage\": {\n        \"@type\": \"WebPage\",\n        \"@id\": \"https:\/\/hoachatlocthien.com\/javen-10-12-xu-ly-nuoc-thai\/\"\n      },\n      \"articleSection\": [\n        \"H\u00f3a ch\u1ea5t x\u1eed l\u00fd n\u01b0\u1edbc\",\n        \"Javen\"\n      ],\n      \"keywords\": [\n        \"Javen x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i\",\n        \"NaOCl kh\u1eed tr\u00f9ng\",\n        \"Javen 10-12%\",\n        \"kh\u1eed tr\u00f9ng n\u01b0\u1edbc th\u1ea3i\",\n        \"Cl d\u01b0 n\u01b0\u1edbc th\u1ea3i\"\n      ]\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"@id\": \"https:\/\/hoachatlocthien.com\/javen-10-12-xu-ly-nuoc-thai\/#faq-schema\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Li\u1ec1u Javen 10-12% cho kh\u1eed tr\u00f9ng n\u01b0\u1edbc th\u1ea3i sinh ho\u1ea1t?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"30-100 mL Javen 10-12% m\u1ed7i m\u00b3 n\u01b0\u1edbc, \u0111\u1ea3m b\u1ea3o Cl d\u01b0 0,5-2,0 mg\/L sau b\u1ec3 ti\u1ebfp x\u00fac 30 ph\u00fat. 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