{"id":2558,"date":"2026-09-27T16:32:12","date_gmt":"2026-09-27T09:32:12","guid":{"rendered":"https:\/\/cpc1.vn\/kali-hydroxid\/"},"modified":"2026-09-27T16:32:12","modified_gmt":"2026-09-27T09:32:12","slug":"kali-hydroxid","status":"publish","type":"post","link":"https:\/\/cpc1.vn\/en\/kali-hydroxid\/","title":{"rendered":"Kali hydroxid \u2013 ch\u1ea5t ki\u1ec1m h\u00f3a \u0111i\u1ec1u ch\u1ec9nh pH"},"content":{"rendered":"<h1 class=\"kt-tieu-de\">Kali hydroxid \u2013 ch\u1ea5t ki\u1ec1m h\u00f3a \u0111i\u1ec1u ch\u1ec9nh pH<\/h1>\n<p><strong>Kali hydroxid<\/strong> (KOH, potash \u0103n da, E525) l\u00e0 base m\u1ea1nh, d\u00f9ng r\u1ed9ng r\u00e3i trong b\u00e0o ch\u1ebf \u0111\u1ec3 <strong>\u0111i\u1ec1u ch\u1ec9nh pH<\/strong> dung d\u1ecbch v\u00e0 cho ph\u1ea3n \u1ee9ng v\u1edbi acid y\u1ebfu t\u1ea1o mu\u1ed1i.<\/p>\n<h2>Th\u00f4ng tin nhanh<\/h2>\n<table>\n<tbody>\n<tr>\n<td>T\u00ean kh\u00e1c<\/td>\n<td>Caustic potash, potash lye, potassium hydrate, kalium hydroxydatum, E525<\/td>\n<\/tr>\n<tr>\n<td>S\u1ed1 CAS<\/td>\n<td>1310-58-3<\/td>\n<\/tr>\n<tr>\n<td>C\u00f4ng th\u1ee9c \u2013 KLPT<\/td>\n<td>KOH \u2013 56,11<\/td>\n<\/tr>\n<tr>\n<td>Nh\u00f3m ch\u1ee9c n\u0103ng<\/td>\n<td>Ch\u1ea5t ki\u1ec1m h\u00f3a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Applications<\/h2>\n<ul>\n<li>\u0110i\u1ec1u ch\u1ec9nh pH dung d\u1ecbch trong thu\u1ed1c ti\u00eam, d\u1ecbch truy\u1ec1n, nang v\u00e0 dung d\u1ecbch u\u1ed1ng.<\/li>\n<li>T\u1ea1o mu\u1ed1i v\u1edbi acid y\u1ebfu.<\/li>\n<li>\u1ee8ng d\u1ee5ng l\u00e0m thu\u1ed1c d\u00f9ng ngo\u00e0i n\u1eb1m ngo\u00e0i ph\u1ea1m vi b\u00e0i vi\u1ebft.<\/li>\n<\/ul>\n<h2>M\u00f4 t\u1ea3 v\u00e0 t\u00ednh ch\u1ea5t<\/h2>\n<ul>\n<li>Kh\u1ed1i nung ch\u1ea3y tr\u1eafng ho\u1eb7c g\u1ea7n tr\u1eafng, d\u1ea1ng vi\u00ean nh\u1ecf, v\u1ea3y, que\u2026; c\u1ee9ng, gi\u00f2n, v\u1ebft g\u00e3y k\u1ebft tinh.<\/li>\n<li>H\u00fat \u1ea9m v\u00e0 ch\u1ea3y r\u1eefa; ti\u1ebfp x\u00fac kh\u00f4ng kh\u00ed h\u1ea5p thu nhanh CO<sub>2<\/sub> v\u00e0 n\u01b0\u1edbc t\u1ea1o kali carbonat.<\/li>\n<li>pH dung d\u1ecbch 0,1 M: 13,5; n\u00f3ng ch\u1ea3y 360 \u00b0C (380 \u00b0C khi khan).<\/li>\n<li>\u0110\u1ed9 tan (20 \u00b0C): n\u01b0\u1edbc 1\/0,9 (1\/0,6 \u1edf 100 \u00b0C); glycerin 1\/2,5; ethanol 95% 1\/3; h\u1ea7u nh\u01b0 kh\u00f4ng tan trong ether.<\/li>\n<li>H\u00f2a tan trong n\u01b0\u1edbc ho\u1eb7c ethanol t\u1ecfa nhi\u1ec7t m\u1ea1nh; ph\u1ea3n \u1ee9ng v\u1edbi acid c\u0169ng t\u1ecfa nhi\u1ec7t m\u1ea1nh.<\/li>\n<\/ul>\n<h2>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ea3o qu\u1ea3n<\/h2>\n<p>B\u1ea3o qu\u1ea3n trong bao b\u00ec k\u00edn kh\u00ed, <strong>kh\u00f4ng b\u1eb1ng kim lo\u1ea1i<\/strong>, n\u01a1i kh\u00f4 m\u00e1t.<\/p>\n<h2>T\u01b0\u01a1ng k\u1ef5<\/h2>\n<p>Base m\u1ea1nh, t\u01b0\u01a1ng k\u1ef5 v\u1edbi m\u1ecdi ch\u1ea5t d\u1ec5 th\u1ee7y ph\u00e2n ho\u1eb7c oxy h\u00f3a; ph\u1ea3n \u1ee9ng v\u1edbi acid, ester, ether, nh\u1ea5t l\u00e0 trong dung d\u1ecbch n\u01b0\u1edbc. Kh\u00f4ng b\u1ea3o qu\u1ea3n trong bao b\u00ec th\u1ee7y tinh ho\u1eb7c nh\u00f4m.<\/p>\n<h2>S\u1ea3n xu\u1ea5t<\/h2>\n<p>\u0110i\u1ec7n ph\u00e2n kali clorid; c\u1ea5p th\u01b0\u01a1ng m\u1ea1i c\u00f3 th\u1ec3 ch\u1ee9a clorid v\u00e0 t\u1ea1p kh\u00e1c.<\/p>\n<h2>An to\u00e0n v\u00e0 thao t\u00e1c<\/h2>\n<p>\u1ede n\u1ed3ng \u0111\u1ed9 th\u1ea5p n\u00f3i chung \u0111\u01b0\u1ee3c xem l\u00e0 kh\u00f4ng \u0111\u1ed9c; \u1edf n\u1ed3ng \u0111\u1ed9 cao l\u00e0 ch\u1ea5t k\u00edch \u1ee9ng \u0103n m\u00f2n da, m\u1eaft, ni\u00eam m\u1ea1c \u2013 ch\u1ea5t r\u1eafn v\u00e0 dung d\u1ecbch g\u00e2y b\u1ecfng, th\u01b0\u1eddng lo\u00e9t s\u00e2u. R\u1ea5t \u0111\u1ed9c khi nu\u1ed1t, c\u00f3 h\u1ea1i khi h\u00edt. LD<sub>50<\/sub> (chu\u1ed9t c\u1ed1ng, u\u1ed1ng): 0,273 g\/kg. \u0110eo g\u0103ng tay, k\u00ednh b\u1ea3o h\u1ed9, m\u1eb7t n\u1ea1 v\u00e0 qu\u1ea7n \u00e1o b\u1ea3o h\u1ed9. Gi\u1edbi h\u1ea1n ph\u01a1i nhi\u1ec5m ng\u1eafn h\u1ea1n t\u1ea1i Anh: 2 mg\/m\u00b3.<\/p>\n<h2>T\u00ecnh tr\u1ea1ng ph\u00e1p l\u00fd<\/h2>\n<ul>\n<li>GRAS; \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng th\u1ef1c ph\u1ea9m t\u1ea1i ch\u00e2u \u00c2u (E525).<\/li>\n<li>C\u00f3 trong FDA Inactive Ingredients Guide (thu\u1ed1c ti\u00eam, d\u1ecbch truy\u1ec1n, nang v\u00e0 dung d\u1ecbch u\u1ed1ng); c\u00f3 trong thu\u1ed1c ti\u00eam v\u00e0 kh\u00f4ng ti\u00eam \u0111\u01b0\u1ee3c c\u1ea5p ph\u00e9p t\u1ea1i Anh; c\u00f3 trong danh m\u1ee5c t\u00e1 d\u01b0\u1ee3c \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn c\u1ee7a Canada.<\/li>\n<li>C\u00f3 chuy\u00ean lu\u1eadn trong BP, JP, Ph.Eur., USP-NF v\u00e0 Food Chemicals Codex.<\/li>\n<\/ul>\n<p><strong>Ch\u1ea5t li\u00ean quan:<\/strong> natri hydroxid, kali carbonat.<\/p>\n<h2>Ngu\u1ed3n tham kh\u1ea3o<\/h2>\n<p>N\u1ed9i dung \u0111\u01b0\u1ee3c CPC1 bi\u00ean so\u1ea1n, t\u00f3m l\u01b0\u1ee3c c\u00f3 ch\u1ecdn l\u1ecdc t\u1eeb chuy\u00ean lu\u1eadn <em>Potassium Hydroxide<\/em> trong:<br \/>\nRowe R.C., Sheskey P.J., Owen S.C. (ch\u1ee7 bi\u00ean). <em>Handbook of Pharmaceutical Excipients<\/em>, \u1ea5n b\u1ea3n 5.<br \/>\nPharmaceutical Press (London) &amp; American Pharmacists Association (Washington DC), 2006.<br \/>\nB\u00e0i vi\u1ebft kh\u00f4ng sao ch\u00e9p nguy\u00ean v\u0103n t\u00e0i li\u1ec7u g\u1ed1c; c\u00e1c s\u1ed1 li\u1ec7u k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c d\u1eabn l\u1ea1i t\u1eeb t\u00e0i li\u1ec7u n\u00e0y.<\/p>\n<p><em>\u1ea2nh minh h\u1ecda: c\u00f4ng th\u1ee9c c\u1ea5u t\u1ea1o do CPC1 v\u1ebd l\u1ea1i t\u1eeb d\u1eef li\u1ec7u c\u1ea5u tr\u00fac h\u00f3a h\u1ecdc c\u00f4ng khai.<\/em><\/p>\n<p><em>L\u01b0u \u00fd: th\u00f4ng tin mang t\u00ednh tham kh\u1ea3o cho ng\u01b0\u1eddi l\u00e0m chuy\u00ean m\u00f4n b\u00e0o ch\u1ebf, d\u1ef1a tr\u00ean \u1ea5n b\u1ea3n n\u0103m 2006.<br \/>\nTi\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 t\u00ecnh tr\u1ea1ng ph\u00e1p l\u00fd c\u00f3 th\u1ec3 \u0111\u00e3 thay \u0111\u1ed5i \u2014 lu\u00f4n \u0111\u1ed1i chi\u1ebfu d\u01b0\u1ee3c \u0111i\u1ec3n v\u00e0 quy \u0111\u1ecbnh<br \/>\nhi\u1ec7n h\u00e0nh tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Kali hydroxid \u2013 ch\u1ea5t ki\u1ec1m h\u00f3a \u0111i\u1ec1u ch\u1ec9nh pH Kali hydroxid (KOH, potash \u0103n da, E525) l\u00e0 base m\u1ea1nh, d\u00f9ng r\u1ed9ng r\u00e3i trong b\u00e0o ch\u1ebf \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh pH dung d\u1ecbch v\u00e0 cho ph\u1ea3n \u1ee9ng v\u1edbi acid y\u1ebfu t\u1ea1o mu\u1ed1i. Th\u00f4ng tin nhanh T\u00ean kh\u00e1c Caustic potash, potash lye, potassium hydrate, kalium hydroxydatum, E525 S\u1ed1 [&hellip;]<\/p>","protected":false},"author":1,"featured_media":2557,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","footnotes":""},"categories":[122],"tags":[],"class_list":["post-2558","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ta-duoc"],"blocksy_meta":[],"acf":[],"uagb_featured_image_src":{"full":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-hydroxid.png",1200,675,false],"thumbnail":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-hydroxid-150x150.png",150,150,true],"medium":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-hydroxid-300x169.png",300,169,true],"medium_large":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-hydroxid-768x432.png",768,432,true],"large":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-hydroxid-1024x576.png",1024,576,true],"1536x1536":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-hydroxid.png",1200,675,false],"2048x2048":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-hydroxid.png",1200,675,false],"trp-custom-language-flag":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-hydroxid-18x10.png",18,10,true]},"uagb_author_info":{"display_name":"cpc1vn","author_link":"https:\/\/cpc1.vn\/en\/author\/cpc1vn\/"},"uagb_comment_info":0,"uagb_excerpt":"Kali hydroxid \u2013 ch\u1ea5t ki\u1ec1m h\u00f3a \u0111i\u1ec1u ch\u1ec9nh pH Kali hydroxid (KOH, potash \u0103n da, E525) l\u00e0 base m\u1ea1nh, d\u00f9ng r\u1ed9ng r\u00e3i trong b\u00e0o ch\u1ebf \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh pH dung d\u1ecbch v\u00e0 cho ph\u1ea3n \u1ee9ng v\u1edbi acid y\u1ebfu t\u1ea1o mu\u1ed1i. Th\u00f4ng tin nhanh T\u00ean kh\u00e1c Caustic potash, potash lye, potassium hydrate, kalium hydroxydatum, E525 S\u1ed1&hellip;","_links":{"self":[{"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/posts\/2558","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/comments?post=2558"}],"version-history":[{"count":0,"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/posts\/2558\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/media\/2557"}],"wp:attachment":[{"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/media?parent=2558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/categories?post=2558"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/tags?post=2558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}