{"id":1817,"date":"2023-12-18T06:00:23","date_gmt":"2023-12-17T23:00:23","guid":{"rendered":"https:\/\/hoachatlocthien.com\/?p=1817"},"modified":"2025-02-15T09:34:32","modified_gmt":"2025-02-15T02:34:32","slug":"voi-toi-caoh2-la-gi","status":"publish","type":"post","link":"https:\/\/hoachatlocthien.com\/zh\/voi-toi-caoh2-la-gi","title":{"rendered":"V\u00f4i T\u00f4i Ca(OH)2 L\u00e0 G\u00ec? T\u00ednh Ch\u1ea5t V\u00e0 C\u00e1ch B\u1ea3o Qu\u1ea3n V\u00f4i T\u00f4i Ca(OH)2"},"content":{"rendered":"<p>V\u00f4i t\u00f4i (Ca(OH)\u2082), hay c\u00f2n g\u1ecdi l\u00e0 Canxi Hydroxit, l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t baz\u01a1 m\u1ea1nh c\u00f3 \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong x\u1eed l\u00fd n\u01b0\u1edbc, x\u00e2y d\u1ef1ng, th\u1ef1c ph\u1ea9m, n\u00f4ng nghi\u1ec7p v\u00e0 y t\u1ebf. H\u1ee3p ch\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch t\u00f4i v\u00f4i s\u1ed1ng (CaO) v\u1edbi n\u01b0\u1edbc, thu \u0111\u01b0\u1ee3c m\u1ed9t ch\u1ea5t b\u1ed9t tr\u1eafng m\u1ecbn, kh\u00f4ng m\u00f9i, tan \u00edt trong n\u01b0\u1edbc v\u00e0 t\u1ea1o ra dung d\u1ecbch ki\u1ec1m nh\u1eb9 g\u1ecdi l\u00e0 n\u01b0\u1edbc v\u00f4i trong.Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc, t\u00ednh ch\u1ea5t, \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1ch b\u1ea3o qu\u1ea3n Ca(OH)\u2082, c\u0169ng nh\u01b0 nh\u1eefng l\u1ee3i \u00edch m\u00e0 h\u1ee3p ch\u1ea5t n\u00e0y mang l\u1ea1i trong \u0111\u1eddi s\u1ed1ng v\u00e0 c\u00f4ng nghi\u1ec7p.\n<\/p><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 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href=\"https:\/\/hoachatlocthien.com\/zh\/voi-toi-caoh2-la-gi\/#Tinh_Chat_Hoa_Hoc_Cua_Voi_Toi_CaOH2\" title=\"T\u00ednh Ch\u1ea5t Ho\u00e1 H\u1ecdc C\u1ee7a V\u00f4i T\u00f4i Ca(OH)2\">T\u00ednh Ch\u1ea5t Ho\u00e1 H\u1ecdc C\u1ee7a V\u00f4i T\u00f4i Ca(OH)2<\/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\/zh\/voi-toi-caoh2-la-gi\/#Ung_Dung_Cua_Voi_Toi_Trong_Cong_Nghiep_va_Doi_Song\" title=\"\u1ee8ng D\u1ee5ng C\u1ee7a V\u00f4i T\u00f4i Trong C\u00f4ng Nghi\u1ec7p v\u00e0 \u0110\u1eddi S\u1ed1ng\">\u1ee8ng D\u1ee5ng C\u1ee7a V\u00f4i T\u00f4i Trong C\u00f4ng Nghi\u1ec7p v\u00e0 \u0110\u1eddi S\u1ed1ng<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/hoachatlocthien.com\/zh\/voi-toi-caoh2-la-gi\/#Xu_ly_nuoc\" title=\"X\u1eed l\u00fd n\u01b0\u1edbc\">X\u1eed l\u00fd n\u01b0\u1edbc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/hoachatlocthien.com\/zh\/voi-toi-caoh2-la-gi\/#Xay_dung\" title=\"X\u00e2y d\u1ef1ng\">X\u00e2y d\u1ef1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/hoachatlocthien.com\/zh\/voi-toi-caoh2-la-gi\/#Chat_trung_hoa\" title=\"Ch\u1ea5t trung h\u00f2a\">Ch\u1ea5t trung h\u00f2a<\/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\/voi-toi-caoh2-la-gi\/#Dieu_chinh_pH\" title=\"\u0110i\u1ec1u ch\u1ec9nh pH\">\u0110i\u1ec1u ch\u1ec9nh pH<\/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\/voi-toi-caoh2-la-gi\/#Bao_Quan_Voi_Toi_CaOH2\" title=\"B\u1ea3o Qu\u1ea3n V\u00f4i T\u00f4i Ca(OH)2\">B\u1ea3o Qu\u1ea3n V\u00f4i T\u00f4i Ca(OH)2<\/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\/voi-toi-caoh2-la-gi\/#Nhan_Bao_Gia_Voi_Toi_CaOH2\" title=\"Nh\u1eadn B\u00e1o Gi\u00e1 V\u00f4i T\u00f4i Ca(OH)2\">Nh\u1eadn B\u00e1o Gi\u00e1 V\u00f4i T\u00f4i Ca(OH)2<\/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\/voi-toi-caoh2-la-gi\/#Voi_toi_CaOH%E2%82%82_co_gay_hai_cho_suc_khoe_con_nguoi_khong\" title=\"V\u00f4i t\u00f4i (Ca(OH)\u2082) c\u00f3 g\u00e2y h\u1ea1i cho s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi kh\u00f4ng?\">V\u00f4i t\u00f4i (Ca(OH)\u2082) c\u00f3 g\u00e2y h\u1ea1i cho s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi 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\/voi-toi-caoh2-la-gi\/#Vi_sao_voi_toi_duoc_dung_trong_bao_quan_thuc_pham_nhung_khong_duoc_dung_truc_tiep_trong_che_bien_mon_an\" title=\"V\u00ec sao v\u00f4i t\u00f4i \u0111\u01b0\u1ee3c d\u00f9ng trong b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c d\u00f9ng tr\u1ef1c ti\u1ebfp trong ch\u1ebf bi\u1ebfn m\u00f3n \u0103n?\">V\u00ec sao v\u00f4i t\u00f4i \u0111\u01b0\u1ee3c d\u00f9ng trong b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c d\u00f9ng tr\u1ef1c ti\u1ebfp trong ch\u1ebf bi\u1ebfn m\u00f3n \u0103n?<\/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\/voi-toi-caoh2-la-gi\/#Tai_sao_voi_toi_it_tan_trong_nuoc_nhung_dung_dich_cua_no_van_co_tinh_bazo_manh\" title=\"T\u1ea1i sao v\u00f4i t\u00f4i \u00edt tan trong n\u01b0\u1edbc nh\u01b0ng dung d\u1ecbch c\u1ee7a n\u00f3 v\u1eabn c\u00f3 t\u00ednh baz\u01a1 m\u1ea1nh?\">T\u1ea1i sao v\u00f4i t\u00f4i \u00edt tan trong n\u01b0\u1edbc nh\u01b0ng dung d\u1ecbch c\u1ee7a n\u00f3 v\u1eabn c\u00f3 t\u00ednh baz\u01a1 m\u1ea1nh?<\/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\/voi-toi-caoh2-la-gi\/#Vi_sao_voi_toi_duoc_dung_de_xu_ly_nuoc_nhung_lai_co_the_gay_o_nhiem_neu_dung_sai_cach\" title=\"V\u00ec sao v\u00f4i t\u00f4i \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 x\u1eed l\u00fd n\u01b0\u1edbc nh\u01b0ng l\u1ea1i c\u00f3 th\u1ec3 g\u00e2y \u00f4 nhi\u1ec5m n\u1ebfu d\u00f9ng sai c\u00e1ch?\">V\u00ec sao v\u00f4i t\u00f4i \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 x\u1eed l\u00fd n\u01b0\u1edbc nh\u01b0ng l\u1ea1i c\u00f3 th\u1ec3 g\u00e2y \u00f4 nhi\u1ec5m n\u1ebfu d\u00f9ng sai c\u00e1ch?<\/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\/voi-toi-caoh2-la-gi\/#Tai_sao_khi_bao_quan_voi_toi_can_tranh_tiep_xuc_voi_khong_khi\" title=\"T\u1ea1i sao khi b\u1ea3o qu\u1ea3n v\u00f4i t\u00f4i c\u1ea7n tr\u00e1nh ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed?\">T\u1ea1i sao khi b\u1ea3o qu\u1ea3n v\u00f4i t\u00f4i c\u1ea7n tr\u00e1nh ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Voi_Toi_CaOH2_La_Gi\"><\/span>V\u00f4i T\u00f4i Ca(OH)2 L\u00e0 G\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>\nCanxi Hydroxit (Ca(OH)\u2082) l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t v\u00f4 c\u01a1 thu\u1ed9c nh\u00f3m baz\u01a1 m\u1ea1nh, t\u1ed3n t\u1ea1i d\u01b0\u1edbi d\u1ea1ng b\u1ed9t tr\u1eafng m\u1ecbn ho\u1eb7c tinh th\u1ec3 kh\u00f4ng m\u00e0u. H\u1ee3p ch\u1ea5t n\u00e0y kh\u00f4ng c\u00f3 m\u00f9i, \u00edt tan trong n\u01b0\u1edbc v\u00e0 c\u00f3 \u0111\u1ed9 pH t\u1eeb 12 &#8211; 12.4, t\u1ea1o dung d\u1ecbch ki\u1ec1m nh\u1eb9 g\u1ecdi l\u00e0 n\u01b0\u1edbc v\u00f4i trong.V\u00f4i t\u00f4i \u0111\u01b0\u1ee3c chia th\u00e0nh hai d\u1ea1ng ch\u00ednh:\n\nV\u00f4i t\u00f4i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia l\u00e0m hai d\u1ea1ng ch\u00ednh:\n<\/p><ul class=\"wp-block-list\"><li><strong>V\u00f4i s\u1eefa:<\/strong> L\u00e0 dung d\u1ecbch Canxi Hydroxit ch\u01b0a l\u1ecdc, c\u00f3 m\u00e0u tr\u1eafng \u0111\u1ee5c do ch\u1ee9a c\u00e1c h\u1ea1t Ca(OH)\u2082 ch\u01b0a tan h\u1ebft.<\/li>\n\n<li><strong>N\u01b0\u1edbc v\u00f4i trong:<\/strong> L\u00e0 dung d\u1ecbch \u0111\u00e3 l\u1ecdc s\u1ea1ch t\u1ea1p ch\u1ea5t, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m v\u00e0 x\u1eed l\u00fd n\u01b0\u1edbc.<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tinh_Chat_Vat_Ly_Cua_Voi_Toi_CaOH2\"><\/span>T\u00ednh Ch\u1ea5t V\u1eadt L\u00fd C\u1ee7a V\u00f4i T\u00f4i Ca(OH)2<span class=\"ez-toc-section-end\"><\/span><\/h2><ul class=\"wp-block-list\"><li><strong>\u5316\u5b66\u5f0f<\/strong>: <strong>\u6c22\u6c27\u5316\u9499<\/strong><\/li>\n\n<li><strong>\u72b6\u6001<\/strong>: R\u1eafn, d\u1ea1ng <strong>b\u1ed9t tr\u1eafng m\u1ecbn<\/strong> \u6216 <strong>tinh th\u1ec3 kh\u00f4ng m\u00e0u<\/strong>.<\/li>\n\n<li><strong>M\u00f9i v\u1ecb<\/strong>: Kh\u00f4ng m\u00f9i, v\u1ecb h\u01a1i \u0111\u1eafng.<\/li>\n\n<li><strong>T\u00ednh tan<\/strong>: \u00cdt tan trong n\u01b0\u1edbc (<strong>0,185 g\/100 ml \u1edf 20\u00b0C<\/strong>).<\/li>\n\n<li><strong>T\u00ednh d\u1eabn nhi\u1ec7t v\u00e0 \u0111i\u1ec7n<\/strong>: Kh\u00f4ng d\u1eabn \u0111i\u1ec7n, kh\u00f4ng ch\u00e1y.<\/li>\n\n<li><strong>Nhi\u1ec7t \u0111\u1ed9 ph\u00e2n h\u1ee7y<\/strong>: <strong>512\u00b0C<\/strong>, khi nung n\u00f3ng t\u1ea1o th\u00e0nh <strong>CaO (v\u00f4i s\u1ed1ng)<\/strong> v\u00e0 h\u01a1i n\u01b0\u1edbc.<\/li>\n\n<li><strong>\u0110\u1ed9 pH<\/strong>: <strong>12-12.4<\/strong>, th\u1ec3 hi\u1ec7n t\u00ednh ki\u1ec1m m\u1ea1nh.<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" data-src=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/12\/CaOH2.png\" alt=\"CaOH2\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1000px; --smush-placeholder-aspect-ratio: 1000\/730;\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tinh_Chat_Hoa_Hoc_Cua_Voi_Toi_CaOH2\"><\/span>T\u00ednh Ch\u1ea5t Ho\u00e1 H\u1ecdc C\u1ee7a V\u00f4i T\u00f4i Ca(OH)2<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Ca(OH)\u2082 th\u1ec3 hi\u1ec7n nhi\u1ec1u t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc quan tr\u1ecdng:<\/p><ul class=\"wp-block-list\"><li><strong>Ph\u1ea3n \u1ee9ng v\u1edbi Axit:<\/strong><ul class=\"wp-block-list\"><li>Ca(OH)2 + 2HCl \u2192 CaCl2 + 2H2O<\/li><\/ul><\/li>\n\n<li><strong>Ph\u1ea3n \u1ee9ng v\u1edbi CO2:<\/strong><ul class=\"wp-block-list\"><li>CO2 + Ca(OH)2 \u2192 CaCO3 + H2O<\/li>\n\n<li>2CO2 + Ca(OH)2 \u2192 Ca(HCO3)2<\/li><\/ul><\/li>\n\n<li><strong>\u4e0e\u76d0\u7684\u53cd\u5e94<\/strong><ul class=\"wp-block-list\"><li>Ca(OH)2 + CuCl2 \u2192 Cu(OH)2 + CaCl2<\/li>\n\n<li>Ca(OH)2 + Mg(HCO3)2 \u2192 CaCO3 + MgCO3 + 2H2O<\/li><\/ul><\/li>\n\n<li><strong>\u0110\u1ed5i m\u00e0u qu\u1ef3 t\u00edm v\u00e0 dung d\u1ecbch phenolphthalein:<\/strong><ul class=\"wp-block-list\"><li>Do l\u00e0 m\u1ed9t baz\u01a1, v\u00f4i c\u00f3 th\u1ec3 l\u00e0m \u0111\u1ed5i m\u00e0u qu\u1ef3 t\u00edm sang m\u00e0u xanh (v\u00ec t\u1ea1o mu\u1ed1i canxi v\u00e0 n\u01b0\u1edbc).<\/li>\n\n<li>N\u00f3 c\u0169ng c\u00f3 th\u1ec3 l\u00e0m dung d\u1ecbch phenolphthalein (m\u1ed9t ch\u1ea5t ch\u1ec9 th\u1ecb) t\u1eeb m\u00e0u kh\u00f4ng m\u00e0u th\u00e0nh h\u1ed3ng \u0111\u1ecf, ch\u1ec9 ra t\u00ednh ki\u1ec1m c\u1ee7a n\u00f3.<\/li><\/ul><\/li><\/ul><p>\nNh\u1eefng t\u00ednh ch\u1ea5t n\u00e0y l\u00e0m cho <strong>v\u00f4i t\u00f4i Ca(OH)2<\/strong> tr\u1edf th\u00e0nh m\u1ed9t ch\u1ea5t h\u00f3a h\u1ecdc quan tr\u1ecdng v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng trong c\u00f4ng nghi\u1ec7p v\u00e0 h\u00f3a h\u1ecdc th\u1ef1c t\u1ebf. <strong>T\u00ecm hi\u1ec3u th\u00eam<\/strong><\/p><ul class=\"wp-block-list\"><li><a href=\"https:\/\/hoachatlocthien.com\/zh\/phan-ung-voi-toi\/\">Ph\u1ea3n \u1ee9ng v\u00f4i t\u00f4i<\/a><\/li>\n\n<li><a href=\"https:\/\/hoachatlocthien.com\/zh\/uu-diem-caoh2\/\">\u01afu \u0111i\u1ec3m CaOH2<\/a><\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ung_Dung_Cua_Voi_Toi_Trong_Cong_Nghiep_va_Doi_Song\"><\/span><strong>\u1ee8ng D\u1ee5ng C\u1ee7a V\u00f4i T\u00f4i Trong C\u00f4ng Nghi\u1ec7p v\u00e0 \u0110\u1eddi S\u1ed1ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Xu_ly_nuoc\"><\/span>X\u1eed l\u00fd n\u01b0\u1edbc<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Gi\u00fap <strong data-start=\"3781\" data-end=\"3801\">\u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 pH<\/strong>, kh\u1eed tr\u00f9ng vi khu\u1ea9n, lo\u1ea1i b\u1ecf kim lo\u1ea1i n\u1eb7ng.<ul class=\"wp-block-list\"><li>Hidroxit canxi l\u00e0 ch\u1ea5t t\u00e1c nh\u00e2n hi\u1ec7u qu\u1ea3 \u0111\u1ec3 t\u0103ng \u0111\u1ed9 pH c\u1ee7a n\u01b0\u1edbc c\u00f3 t\u00ednh axit. Vi\u1ec7c th\u00eam Hidroxit canxis\u1ebd t\u0103ng t\u00ednh ki\u1ec1m c\u1ee7a n\u01b0\u1edbc, gi\u00fap trung h\u00f2a \u0111\u1ed9 axit.<\/li>\n\n<li>Trong x\u1eed l\u00fd n\u01b0\u1edbc, V\u00f4i t\u00f4i \u0111\u00f4i khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ch\u1ea5t h\u1ed7 tr\u1ee3 \u0111\u00f4ng c\u1ee9ng ho\u1eb7c l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a qu\u00e1 tr\u00ecnh \u0111\u00f4ng c\u1ee9ng. N\u00f3 th\u00fac \u0111\u1ea9y s\u1ef1 k\u1ebft t\u1ee5 c\u1ee7a c\u00e1c h\u1ea1t, l\u00e0m cho ch\u00fang d\u1ec5 d\u00e0ng l\u1eafng xu\u1ed1ng ho\u1eb7c \u0111\u01b0\u1ee3c l\u1ecdc ra.<\/li><\/ul><\/li>\n\n<li>\u1ee8ng d\u1ee5ng trong <strong data-start=\"3867\" data-end=\"3883\">l\u00e0m m\u1ec1m n\u01b0\u1edbc<\/strong> nh\u1edd ph\u1ea3n \u1ee9ng k\u1ebft t\u1ee7a v\u1edbi Mg\u00b2\u207a, Fe\u00b3\u207a.<ul class=\"wp-block-list\"><li>Hidroxit canxi c\u00f3 th\u1ec3 \u0111\u00f3ng g\u00f3p v\u00e0o qu\u00e1 tr\u00ecnh l\u00e0m m\u1ec1m n\u01b0\u1edbc b\u1eb1ng c\u00e1ch ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c ion c\u1ee9ng nh\u01b0 Fe, Mg,.. \u0111\u1ec3 t\u1ea1o k\u1ebft t\u1ee7a. Nh\u1eefng k\u1ebft t\u1ee7a n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf th\u00f4ng qua qu\u00e1 tr\u00ecnh l\u1eafng, l\u1ecdc, v\u00e0 t\u1eeb \u0111\u00f3 l\u00e0m gi\u1ea3m \u0111\u1ed9 c\u1ee9ng c\u1ee7a n\u01b0\u1edbc.<\/li><\/ul><\/li>\n\n<li>M\u1eb7c d\u00f9 kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ea5t kh\u1eed tr\u00f9ng ch\u00ednh, tuy nhi\u00ean m\u00f4i tr\u01b0\u1eddng c\u00f3 \u0111\u1ed9 pH cao t\u1eeb v\u00f4i t\u00f4i c\u00f3 th\u1ec3 \u0111\u00f3ng g\u00f3p v\u00e0o qu\u00e1 tr\u00ecnh kh\u1eed tr\u00f9ng, ng\u0103n ch\u1eb7n s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a m\u1ed9t s\u1ed1 vi khu\u1ea9n c\u00f3 h\u1ea1i.<\/li>\n\n<li>S\u1ef1 t\u0103ng \u0111\u1ed9 pH t\u1eeb hidroxit canxi c\u00f3 th\u1ec3 gi\u00fap ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh \u0103n m\u00f2n trong h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i n\u01b0\u1edbc.<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" data-src=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/11\/H2O2-Bangladesh-hoa-chat-loc-thien-1.png\" alt=\"H2O2-Bangladesh-hoa-chat-loc-thien-1\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1000px; --smush-placeholder-aspect-ratio: 1000\/730;\" \/><\/figure><\/div><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Xay_dung\"><\/span>X\u00e2y d\u1ef1ng<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Th\u00e0nh ph\u1ea7n trong <strong data-start=\"3974\" data-end=\"3999\">v\u1eefa x\u00e2y d\u1ef1ng, xi m\u0103ng<\/strong> gi\u00fap gi\u1ea3m co ng\u00f3t, t\u0103ng \u0111\u1ed9 b\u1ec1n.<\/li>\n\n<li>L\u00e0 ch\u1ea5t \u1ed5n \u0111\u1ecbnh trong <strong data-start=\"4060\" data-end=\"4082\">gia c\u1ed1 n\u1ec1n \u0111\u1ea5t y\u1ebfu<\/strong>.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Chat_trung_hoa\"><\/span>Ch\u1ea5t trung h\u00f2a<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Y H\u1ecdc:<\/strong> Trong l\u0129nh v\u1ef1c y h\u1ecdc, v\u00f4i t\u00f4i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m m\u1ed9t ph\u1ea7n c\u1ee7a dung d\u1ecbch \u0111\u1ec3 \u0111i\u1ec1u tr\u1ecb t\u00ecnh tr\u1ea1ng t\u0103ng \u0111\u1ed9 axit trong c\u01a1 th\u1ec3, s\u00e1t tr\u00f9ng v\u00e0 tr\u1ecb s\u00e2u r\u0103ng.<ul class=\"wp-block-list\"><li><strong>\u0110i\u1ec1u tr\u1ecb lo\u00e9t d\u1ea1 d\u00e0y<\/strong>: D\u00f9ng \u0111\u1ec3 trung h\u00f2a axit d\u01b0 th\u1eeba.<\/li>\n\n<li>Th\u00e0nh ph\u1ea7n trong m\u1ed9t s\u1ed1 lo\u1ea1i kem tr\u1ecb n\u1ea5m da.<\/li><\/ul><\/li>\n\n<li><strong>\u5e9f\u6c34\u5904\u7406<\/strong> Dung d\u1ecbch n\u01b0\u1edbc v\u00f4i c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i, gi\u00fap l\u00e0m gi\u1ea3m \u0111\u1ed9 axit v\u00e0 k\u1ebft t\u1ee7a c\u00e1c ch\u1ea5t c\u1eb7n.<\/li>\n\n<li><strong>Ch\u1ebf T\u1ea1o Xi M\u0103ng<\/strong>: Hidroxit Canxi c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o xi m\u0103ng (l\u00e0m ch\u1ea5t k\u1ebft d\u00ednh) th\u00f4ng qua qu\u00e1 tr\u00ecnh carbonatation.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dieu_chinh_pH\"><\/span>\u0110i\u1ec1u ch\u1ec9nh pH<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>C\u00f4ng Nghi\u1ec7p Th\u1ef1c Ph\u1ea9m:<\/strong> V\u00f4i t\u00f4i th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00f4ng nghi\u1ec7p th\u1ef1c ph\u1ea9m nh\u01b0 l\u00e0 ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 pH, ch\u1ea5t ch\u1ed1ng \u00f4 nhi\u1ec5m v\u00e0 ch\u1ea5t b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m.<ul class=\"wp-block-list\"><li><strong>X\u1eed l\u00fd m\u00eda \u0111\u01b0\u1eddng<\/strong>: Gi\u00fap tinh l\u1ecdc \u0111\u01b0\u1eddng.<\/li>\n\n<li><strong>Ch\u1ebf bi\u1ebfn b\u1ed9t ng\u00f4<\/strong>: \u0110\u01b0\u1ee3c d\u00f9ng trong <strong>tortilla<\/strong> c\u1ee7a Mexico.<\/li><\/ul><\/li>\n\n<li><strong>Ng\u00e0nh N\u00f4ng Nghi\u1ec7p:<\/strong> Ca(OH)2 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u kh\u1eed chua cho \u0111\u1ea5t v\u00e0 cung c\u1ea5p canxi cho c\u00e2y tr\u1ed3ng.<ul class=\"wp-block-list\"><li><strong>\u0110i\u1ec1u ch\u1ec9nh pH \u0111\u1ea5t<\/strong>: Gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 chua c\u1ee7a \u0111\u1ea5t.<\/li>\n\n<li><strong>Di\u1ec7t tr\u1eeb s\u00e2u b\u1ec7nh<\/strong>: L\u00e0 th\u00e0nh ph\u1ea7n trong n\u01b0\u1edbc v\u00f4i ph\u00f2ng tr\u1eeb n\u1ea5m b\u1ec7nh.<\/li><\/ul><\/li>\n\n<li><strong>Ch\u1ebf Bi\u1ebfn Gi\u1ea5y:<\/strong> V\u00f4i t\u00f4i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 c\u00e2n b\u1eb1ng pH trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn gi\u1ea5y.<\/li>\n\n<li><strong>Ch\u1ebf Bi\u1ebfn Cao Su:<\/strong> Hidroxit canxi c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m so\u00e1t \u0111\u1ed9 pH trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t cao su.<\/li><\/ul><p><strong>C\u00f3 th\u1ec3 b\u1ea1n quan t\u00e2m:<\/strong><\/p><ul class=\"wp-block-list\"><li><a href=\"https:\/\/hoachatlocthien.com\/zh\/canxi-hydroxide-caoh2\/\">Mua Canxi Hydroxit<\/a><\/li>\n\n<li><a href=\"https:\/\/hoachatlocthien.com\/zh\/calcium-chloride-cacl2-trung-quoc-25kg-bao\/\">Mua Canxi Clorua<\/a><\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Bao_Quan_Voi_Toi_CaOH2\"><\/span>B\u1ea3o Qu\u1ea3n V\u00f4i T\u00f4i Ca(OH)2<span class=\"ez-toc-section-end\"><\/span><\/h2><p>\n\u0110\u1ec3 b\u1ea3o qu\u1ea3n t\u1ed1t ch\u1ea5t n\u00e0y ta c\u1ea7n l\u01b0u \u00fd \u0111\u1ebfn nh\u1eefng ti\u00eau ch\u00ed sau:\n<\/p><ul class=\"wp-block-list\"><li>Ca(OH)2 c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n \u1edf n\u01a1i kh\u00f4 r\u00e1o \u0111\u1ec3 tr\u00e1nh t\u00ecnh tr\u1ea1ng h\u00fat \u1ea9m t\u1eeb kh\u00f4ng kh\u00ed v\u00e0 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t.<\/li>\n\n<li>Tr\u00e1nh l\u01b0u tr\u1eef canxi hidroxit \u1edf n\u01a1i c\u00f3 \u00e1nh s\u00e1ng tr\u1ef1c ti\u1ebfp \u0111\u1ec3 ng\u0103n n\u00f3 ph\u00e2n h\u1ee7y v\u00e0 gi\u1eef cho ch\u1ea5t n\u00e0y \u1ed5n \u0111\u1ecbnh.<\/li>\n\n<li><strong>V\u00f4i t\u00f4i<\/strong> ph\u1ea3n \u1ee9ng v\u1edbi CO2 t\u1eeb kh\u00f4ng kh\u00ed, t\u1ea1o th\u00e0nh canxi carbonate (CaCO3) v\u00e0 gi\u1ea3m t\u00ednh ch\u1ea5t baz\u01a1. Do \u0111\u00f3, c\u1ea7n ph\u1ea3i gi\u1eef cho n\u00f3 kh\u00f4ng ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi kh\u00f4ng kh\u00ed b\u1eb1ng c\u00e1ch \u0111\u1ef1ng trong c\u00e1c v\u1eadt ch\u1ee9a ch\u1eafc ch\u1eafn k\u00edn h\u01a1i.<\/li>\n\n<li>Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a canxi hidroxit \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u00f3a ch\u1ea5t c\u00f2n d\u00f9ng \u0111\u01b0\u1ee3c v\u00e0 kh\u00f4ng b\u1ecb bi\u1ebfn \u0111\u1ed5i.<\/li>\n\n<li>N\u1ebfu c\u00f3 th\u1ec3, n\u00ean s\u1eed d\u1ee5ng canxi hidroxit trong th\u1eddi gian ng\u1eafn \u0111\u1ec3 gi\u1ea3m kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 CO2.<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" data-src=\"https:\/\/hoachatlocthien.com\/wp-content\/uploads\/2023\/12\/caoh2-loc-thien-2.png\" alt=\"Bao Ca(OH)2 L\u1ed9c Thi\u00ean\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1000px; --smush-placeholder-aspect-ratio: 1000\/730;\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Nhan_Bao_Gia_Voi_Toi_CaOH2\"><\/span>Nh\u1eadn B\u00e1o Gi\u00e1 V\u00f4i T\u00f4i Ca(OH)2<span class=\"ez-toc-section-end\"><\/span><\/h2><p>V\u00f4i t\u00f4i t\u1ea1i <strong>\u6d1b\u5929\u5316\u5b78<\/strong> b\u00e1n \u1edf d\u1ea1ng 25kg\/bao v\u1edbi s\u1ed1 l\u01b0\u1ee3ng l\u1edbn v\u00e0 c\u00f3 s\u1eb5n t\u1ea1i kho. L\u1ed9c Thi\u00ean \u0111\u1ea3m b\u1ea3o cung c\u1ea5p b\u00e1o gi\u00e1 v\u00f4i t\u00f4i Ca(OH)2 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 uy t\u00edn, v\u1edbi gi\u00e1 th\u00e0nh h\u1ee3p l\u00fd nh\u1ea5t hi\u1ec7n nay. H\u00e3y li\u00ean h\u1ec7 ngay v\u1edbi ch\u00fang t\u00f4i qua <strong>s\u1ed1 \u0111i\u1ec7n tho\u1ea1i:<\/strong> <a href=\"tel:0979891929\"><strong>0979.89.1929<\/strong><\/a><\/p><p>\u0110\u1ed9i ng\u0169 chuy\u00ean vi\u00ean t\u01b0 v\u1ea5n chuy\u00ean nghi\u1ec7p c\u1ee7a ch\u00fang t\u00f4i s\u1ebd nhanh ch\u00f3ng h\u1ed7 tr\u1ee3 v\u00e0 \u0111\u1ea3m b\u1ea3o mang \u0111\u1ebfn gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u nh\u1ea5t cho qu\u00fd kh\u00e1ch. H\u00f3a Ch\u1ea5t L\u1ed9c Thi\u00ean cam k\u1ebft cung c\u1ea5p s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng, \u0111\u00f3ng g\u00f3i \u0111\u1ea1t ti\u00eau chu\u1ea9n v\u00e0 d\u1ecbch v\u1ee5 h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng xu\u1ea5t s\u1eafc. H\u00e3y \u0111\u1ec3 ch\u00fang t\u00f4i l\u00e0 \u0111\u1ed1i t\u00e1c tin c\u1eady c\u1ee7a qu\u00fd kh\u00e1ch trong l\u0129nh v\u1ef1c h\u00f3a ch\u1ea5t.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><div class=\"row row-collapse row-full-width\"  id=\"row-270692354\">\n\n\n\t<div id=\"col-43322317\" 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-1047585843\" 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-1739584836720\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\"><span class=\"ez-toc-section\" id=\"Voi_toi_CaOH%E2%82%82_co_gay_hai_cho_suc_khoe_con_nguoi_khong\"><\/span>V\u00f4i t\u00f4i (Ca(OH)\u2082) c\u00f3 g\u00e2y h\u1ea1i cho s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer\">\n\n<p><strong>\u6c22\u6c27\u5316\u9499<\/strong> c\u00f3 th\u1ec3 g\u00e2y k\u00edch \u1ee9ng khi ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi da, m\u1eaft ho\u1eb7c h\u00edt ph\u1ea3i b\u1ee5i v\u00f4i. N\u1ebfu h\u00edt ph\u1ea3i trong th\u1eddi gian d\u00e0i, v\u00f4i c\u00f3 th\u1ec3 g\u00e2y k\u00edch \u1ee9ng \u0111\u01b0\u1eddng h\u00f4 h\u1ea5p, d\u1eabn \u0111\u1ebfn ho, kh\u00f3 th\u1edf. Khi ti\u1ebfp x\u00fac v\u1edbi da, \u0111\u1eb7c bi\u1ec7t khi \u1edf d\u1ea1ng dung d\u1ecbch \u0111\u1eadm \u0111\u1eb7c, n\u00f3 c\u00f3 th\u1ec3 g\u00e2y b\u1ecfng h\u00f3a ch\u1ea5t.<br \/>\ud83d\udca1 <strong>C\u00e1ch b\u1ea3o v\u1ec7:<\/strong><br \/>+ <strong>Khi l\u00e0m vi\u1ec7c v\u1edbi v\u00f4i t\u00f4i<\/strong>, n\u00ean \u0111eo g\u0103ng tay, k\u00ednh b\u1ea3o h\u1ed9 v\u00e0 kh\u1ea9u trang.<br \/>+ <strong>N\u1ebfu v\u00f4i t\u00f4i b\u1eafn v\u00e0o m\u1eaft<\/strong>, c\u1ea7n r\u1eeda ngay v\u1edbi n\u01b0\u1edbc s\u1ea1ch trong \u00edt nh\u1ea5t <strong>15 ph\u00fat<\/strong> v\u00e0 \u0111\u1ebfn c\u01a1 s\u1edf y t\u1ebf n\u1ebfu k\u00edch \u1ee9ng n\u1eb7ng.<br \/><strong>+ Kh\u00f4ng n\u00ean h\u00edt b\u1ee5i v\u00f4i<\/strong> trong qu\u00e1 tr\u00ecnh pha tr\u1ed9n ho\u1eb7c v\u1eadn chuy\u1ec3n.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1739584858070\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\"><span class=\"ez-toc-section\" id=\"Vi_sao_voi_toi_duoc_dung_trong_bao_quan_thuc_pham_nhung_khong_duoc_dung_truc_tiep_trong_che_bien_mon_an\"><\/span>V\u00ec sao v\u00f4i t\u00f4i \u0111\u01b0\u1ee3c d\u00f9ng trong b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c d\u00f9ng tr\u1ef1c ti\u1ebfp trong ch\u1ebf bi\u1ebfn m\u00f3n \u0103n?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer\">\n\n<p>V\u00f4i t\u00f4i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t s\u1ed1 c\u00f4ng \u0111o\u1ea1n x\u1eed l\u00fd th\u1ef1c ph\u1ea9m nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n tr\u1ef1c ti\u1ebfp trong th\u1ef1c ph\u1ea9m. L\u00fd do l\u00e0:<br \/>\ud83d\udd39 <strong>\u1ee8ng d\u1ee5ng an to\u00e0n:<\/strong><br \/>+ <strong>L\u00e0m s\u1ea1ch \u0111\u01b0\u1eddng m\u00eda<\/strong>: Ca(OH)\u2082 gi\u00fap lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u01b0\u1eddng.<br \/><strong>+ Ng\u00e2m ng\u00f4 trong s\u1ea3n xu\u1ea5t b\u1ed9t masa<\/strong> (d\u00f9ng l\u00e0m <strong>tortilla<\/strong> \u1edf Mexico).<br \/>\u26a0\ufe0f <strong>Kh\u00f4ng n\u00ean ti\u00eau th\u1ee5 tr\u1ef1c ti\u1ebfp:<\/strong><br \/>+ D\u00f9 \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00f4ng nghi\u1ec7p th\u1ef1c ph\u1ea9m, <strong>Ca(OH)\u2082 c\u00f3 t\u00ednh ki\u1ec1m m\u1ea1nh<\/strong>, n\u1ebfu \u0103n tr\u1ef1c ti\u1ebfp c\u00f3 th\u1ec3 g\u00e2y k\u00edch \u1ee9ng d\u1ea1 d\u00e0y, ru\u1ed9t.<br \/>+ Vi\u1ec7c s\u1eed d\u1ee5ng ph\u1ea3i tu\u00e2n th\u1ee7 li\u1ec1u l\u01b0\u1ee3ng cho ph\u00e9p \u0111\u1ec3 tr\u00e1nh d\u01b0 l\u01b0\u1ee3ng v\u00f4i trong th\u1ef1c ph\u1ea9m.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1739584881452\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\"><span class=\"ez-toc-section\" id=\"Tai_sao_voi_toi_it_tan_trong_nuoc_nhung_dung_dich_cua_no_van_co_tinh_bazo_manh\"><\/span>T\u1ea1i sao v\u00f4i t\u00f4i \u00edt tan trong n\u01b0\u1edbc nh\u01b0ng dung d\u1ecbch c\u1ee7a n\u00f3 v\u1eabn c\u00f3 t\u00ednh baz\u01a1 m\u1ea1nh?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer\">\n\n<p>M\u1eb7c d\u00f9 <strong>Ca(OH)\u2082 \u00edt tan trong n\u01b0\u1edbc<\/strong> (<strong>0,185 g\/100 ml \u1edf 20\u00b0C<\/strong>), nh\u01b0ng l\u01b0\u1ee3ng nh\u1ecf h\u00f2a tan v\u1eabn \u0111\u1ee7 \u0111\u1ec3 t\u1ea1o ra <strong>n\u01b0\u1edbc v\u00f4i trong<\/strong> v\u1edbi <strong>pH cao (12-12.4)<\/strong>.<br \/>\u2699\ufe0f <strong>C\u01a1 ch\u1ebf:<\/strong><br \/>+ Khi h\u00f2a tan trong n\u01b0\u1edbc, <strong>Ca(OH)\u2082 ph\u00e2n ly th\u00e0nh ion<\/strong>: Ca(OH)2\u200b\u21ccCa2++2OH\u2212<br \/>+ Ion <strong>OH\u207b<\/strong> d\u01b0 th\u1eeba khi\u1ebfn dung d\u1ecbch c\u00f3 t\u00ednh baz\u01a1 m\u1ea1nh.<br \/>\ud83d\udca1 <strong>L\u01b0u \u00fd:<\/strong><br \/>+ Khi pha <strong>Ca(OH)\u2082 v\u1edbi n\u01b0\u1edbc<\/strong>, ch\u1ec9 m\u1ed9t ph\u1ea7n nh\u1ecf tan, ph\u1ea7n c\u00f2n l\u1ea1i t\u1ea1o <strong>h\u1ed7n d\u1ecbch tr\u1eafng \u0111\u1ee5c<\/strong> g\u1ecdi l\u00e0 <strong>v\u00f4i s\u1eefa<\/strong>.<br \/>+ \u0110\u1ec3 l\u1ea5y <strong>n\u01b0\u1edbc v\u00f4i trong<\/strong>, c\u1ea7n \u0111\u1ec3 dung d\u1ecbch l\u1eafng xu\u1ed1ng v\u00e0 l\u1ecdc b\u1ecf c\u1eb7n.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1739585021860\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\"><span class=\"ez-toc-section\" id=\"Vi_sao_voi_toi_duoc_dung_de_xu_ly_nuoc_nhung_lai_co_the_gay_o_nhiem_neu_dung_sai_cach\"><\/span>V\u00ec sao v\u00f4i t\u00f4i \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 x\u1eed l\u00fd n\u01b0\u1edbc nh\u01b0ng l\u1ea1i c\u00f3 th\u1ec3 g\u00e2y \u00f4 nhi\u1ec5m n\u1ebfu d\u00f9ng sai c\u00e1ch?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer\">\n\n<p>\ud83d\udd39 <strong>\u1ee8ng d\u1ee5ng trong x\u1eed l\u00fd n\u01b0\u1edbc:<\/strong><br \/><strong>+ T\u0103ng \u0111\u1ed9 pH n\u01b0\u1edbc<\/strong>, kh\u1eed tr\u00f9ng, lo\u1ea1i b\u1ecf ion kim lo\u1ea1i n\u1eb7ng (Fe\u00b3\u207a, Mg\u00b2\u207a).<br \/><strong>+ H\u1ed7 tr\u1ee3 keo t\u1ee5 v\u00e0 l\u1eafng c\u1eb7n<\/strong>, gi\u00fap lo\u1ea1i b\u1ecf ch\u1ea5t h\u1eefu c\u01a1 kh\u1ecfi n\u01b0\u1edbc.<br \/>\u26a0\ufe0f <strong>R\u1ee7i ro n\u1ebfu d\u00f9ng sai c\u00e1ch:<\/strong><br \/><strong><strong>+ <\/strong>L\u1ea1m d\u1ee5ng v\u00f4i t\u00f4i<\/strong> c\u00f3 th\u1ec3 l\u00e0m <strong>n\u01b0\u1edbc qu\u00e1 ki\u1ec1m<\/strong>, g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh v\u1eadt th\u1ee7y sinh.<br \/><strong>+ D\u01b0 l\u01b0\u1ee3ng Ca(OH)\u2082 trong n\u01b0\u1edbc th\u1ea3i<\/strong> c\u00f3 th\u1ec3 g\u00e2y t\u00edch t\u1ee5 canxi, l\u00e0m t\u1eafc ngh\u1ebdn h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn n\u01b0\u1edbc.<br \/>Khi ti\u1ebfp x\u00fac v\u1edbi <strong>n\u01b0\u1edbc c\u00f3 CO\u2082<\/strong>, v\u00f4i c\u00f3 th\u1ec3 t\u1ea1o k\u1ebft t\u1ee7a <strong>CaCO\u2083<\/strong>, g\u00e2y \u0111\u00f3ng c\u1eb7n.<br \/>\ud83d\udca1 <strong>Gi\u1ea3i ph\u00e1p:<\/strong><br \/><strong>+ Ki\u1ec3m so\u00e1t li\u1ec1u l\u01b0\u1ee3ng v\u00f4i<\/strong> khi x\u1eed l\u00fd n\u01b0\u1edbc.<br \/><strong>+ K\u1ebft h\u1ee3p v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd n\u01b0\u1edbc kh\u00e1c<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1739585201059\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\"><span class=\"ez-toc-section\" id=\"Tai_sao_khi_bao_quan_voi_toi_can_tranh_tiep_xuc_voi_khong_khi\"><\/span>T\u1ea1i sao khi b\u1ea3o qu\u1ea3n v\u00f4i t\u00f4i c\u1ea7n tr\u00e1nh ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer\">\n\n<p>Ca(OH)\u2082 c\u00f3 ph\u1ea3n \u1ee9ng m\u1ea1nh v\u1edbi <strong>CO\u2082 trong kh\u00f4ng kh\u00ed<\/strong>, d\u1eabn \u0111\u1ebfn s\u1ef1 t\u1ea1o th\u00e0nh <strong>CaCO\u2083 (Canxi Cacbonat)<\/strong> theo ph\u01b0\u01a1ng tr\u00ecnh: Ca(OH)2\u200b+CO2\u200b\u2192CaCO3\u200b+H2\u200bO<br \/>+ <strong>H\u1eadu qu\u1ea3 c\u1ee7a ph\u1ea3n \u1ee9ng n\u00e0y:<\/strong><br \/><strong>    &#8211; Gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a v\u00f4i<\/strong>: V\u00ec <strong>CaCO\u2083 kh\u00f4ng c\u00f3 t\u00ednh baz\u01a1 m\u1ea1nh<\/strong> \u6b63\u5982 <strong>\u6c22\u6c27\u5316\u9499<\/strong>, n\u00ean v\u00f4i b\u1ecb gi\u1ea3m t\u00e1c d\u1ee5ng khi ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed l\u00e2u d\u00e0i.<br \/><strong>    &#8211; H\u00ecnh th\u00e0nh c\u1eb7n tr\u1eafng<\/strong>: \u0110\u00f3ng c\u1ee9ng b\u1ec1 m\u1eb7t v\u00f4i l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng tan trong n\u01b0\u1edbc.<br \/>\ud83d\udca1 <strong>C\u00e1ch b\u1ea3o qu\u1ea3n \u0111\u00fang:<\/strong><br \/><strong>    &#8211; <\/strong>\u0110\u1ef1ng v\u00f4i t\u00f4i trong <strong>bao b\u00ec k\u00edn<\/strong>, \uff0c\u4e0d\u5141\u8bb8 <strong>h\u1edf ngo\u00e0i tr\u1eddi<\/strong>.<br \/><strong>    &#8211; <\/strong>N\u1ebfu b\u1ea3o qu\u1ea3n l\u00e2u d\u00e0i, n\u00ean <strong>b\u1ecdc k\u00edn b\u1eb1ng t\u00fai ch\u1ed1ng \u1ea9m<\/strong>.<br \/><strong>    &#8211; <\/strong>Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 tr\u00e1nh <strong>v\u00f4i b\u1ecb bi\u1ebfn ch\u1ea5t<\/strong>.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div><p><\/p>","protected":false},"excerpt":{"rendered":"<p>V\u00f4i t\u00f4i (Ca(OH)\u2082), hay c\u00f2n g\u1ecdi l\u00e0 Canxi Hydroxit, l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t baz\u01a1 m\u1ea1nh c\u00f3 \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong x\u1eed l\u00fd n\u01b0\u1edbc, x\u00e2y d\u1ef1ng, th\u1ef1c ph\u1ea9m, n\u00f4ng nghi\u1ec7p v\u00e0 y t\u1ebf. H\u1ee3p ch\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch t\u00f4i v\u00f4i s\u1ed1ng (CaO) v\u1edbi n\u01b0\u1edbc, thu \u0111\u01b0\u1ee3c m\u1ed9t ch\u1ea5t b\u1ed9t tr\u1eafng m\u1ecbn, kh\u00f4ng [&#8230;]\n","protected":false},"author":1,"featured_media":1821,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[16],"tags":[432,463,460,431,520],"class_list":["post-1817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc","tag-caoh2","tag-canxi-hidroxit","tag-canxi-hydroxit","tag-voi-toi","tag-voi-toi-la-gi"],"acf":[],"_links":{"self":[{"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/posts\/1817","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/comments?post=1817"}],"version-history":[{"count":8,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/posts\/1817\/revisions"}],"predecessor-version":[{"id":5510,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/posts\/1817\/revisions\/5510"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/media\/1821"}],"wp:attachment":[{"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/media?parent=1817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/categories?post=1817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hoachatlocthien.com\/zh\/wp-json\/wp\/v2\/tags?post=1817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}