{"id":3635,"date":"2026-09-29T09:23:37","date_gmt":"2026-09-29T02:23:37","guid":{"rendered":"https:\/\/cpc1.vn\/kali-nitrat\/"},"modified":"2026-09-29T09:23:37","modified_gmt":"2026-09-29T02:23:37","slug":"kali-nitrat","status":"publish","type":"post","link":"https:\/\/cpc1.vn\/en\/kali-nitrat\/","title":{"rendered":"Kali nitrat (E252) \u2013 ch\u1ea5t b\u1ea3o qu\u1ea3n thu\u1ed1c nh\u1ecf m\u1eaft, th\u00e0nh ph\u1ea7n kem \u0111\u00e1nh r\u0103ng"},"content":{"rendered":"

Kali nitrat (E252) \u2013 ch\u1ea5t b\u1ea3o qu\u1ea3n thu\u1ed1c nh\u1ecf m\u1eaft, th\u00e0nh ph\u1ea7n kem \u0111\u00e1nh r\u0103ng<\/h1>\n

Kali nitrat<\/strong> (KNO3<\/sub>, di\u00eam ti\u00eau, E252) l\u00e0 mu\u1ed1i v\u00f4 c\u01a1 d\u1ea1ng b\u1ed9t k\u1ebft tinh tr\u1eafng ho\u1eb7c tinh th\u1ec3 kh\u00f4ng m\u00e0u, v\u1ecb m\u1eb7n, m\u00e1t, h\u0103ng. Trong b\u00e0o ch\u1ebf, kali nitrat l\u00e0 ch\u1ea5t b\u1ea3o qu\u1ea3n<\/strong> trong thu\u1ed1c nh\u1ecf m\u1eaft v\u00e0 dung d\u1ecbch r\u1eeda m\u1eaft; n\u00f3 c\u0169ng d\u00f9ng r\u1ed9ng r\u00e3i trong th\u1ef1c ph\u1ea9m v\u00e0 s\u1ea3n ph\u1ea9m ch\u0103m s\u00f3c r\u0103ng mi\u1ec7ng.<\/p>\n

Th\u00f4ng tin nhanh<\/h2>\n\n\n\n\n\n\n\n
T\u00ean kh\u00e1c<\/td>\nDi\u00eam ti\u00eau, niter, saltpeter, kalii nitras, E252<\/td>\n<\/tr>\n
S\u1ed1 CAS<\/td>\n7757-79-1<\/td>\n<\/tr>\n
C\u00f4ng th\u1ee9c \u2013 KLPT<\/td>\nKNO3<\/sub> \u2013 101,1<\/td>\n<\/tr>\n
Nh\u00f3m ch\u1ee9c n\u0103ng<\/td>\nCh\u1ea5t b\u1ea3o qu\u1ea3n kh\u00e1ng khu\u1ea9n<\/td>\n<\/tr>\n
D\u01b0\u1ee3c \u0111i\u1ec3n<\/td>\nBP, Ph.Eur., USP-NF<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Applications<\/h2>\n
    \n
  • Ch\u1ea5t b\u1ea3o qu\u1ea3n trong dung d\u1ecbch r\u1eeda m\u1eaft v\u00e0 thu\u1ed1c nh\u1ecf m\u1eaft.<\/li>\n
  • Th\u00e0nh ph\u1ea7n kem \u0111\u00e1nh r\u0103ng d\u00e0nh cho r\u0103ng nh\u1ea1y c\u1ea3m.<\/li>\n
  • D\u00f9ng r\u1ed9ng r\u00e3i trong th\u1ef1c ph\u1ea9m (E252).<\/li>\n<\/ul>\n

    M\u00f4 t\u1ea3 v\u00e0 t\u00ednh ch\u1ea5t<\/h2>\n
      \n
    • B\u1ed9t k\u1ebft tinh tr\u1eafng ho\u1eb7c g\u1ea7n tr\u1eafng, ho\u1eb7c tinh th\u1ec3 kh\u00f4ng m\u00e0u; v\u1ecb m\u1eb7n, m\u00e1t, h\u0103ng.<\/li>\n
    • pH dung d\u1ecbch 10% kho\u1ea3ng 6,2; t\u1ef7 tr\u1ecdng 2,11 g\/cm\u00b3; \u0111i\u1ec3m ch\u1ea3y 333 \u00b0C.<\/li>\n
    • \u0110\u1ed9 tan: d\u1ec5 tan trong n\u01b0\u1edbc, r\u1ea5t d\u1ec5 tan trong n\u01b0\u1edbc s\u00f4i; tan trong glycerol; h\u1ea7u nh\u01b0 kh\u00f4ng tan trong ethanol.<\/li>\n
    • D\u01b0\u1ee3c \u0111i\u1ec3n: h\u00e0m l\u01b0\u1ee3ng 99,0\u2013101,0% (Ph.Eur.) ho\u1eb7c 99,0\u2013100,5% (USP-NF); gi\u1edbi h\u1ea1n t\u1ea1p ch\u1eb7t h\u01a1n cho lo\u1ea1i d\u00f9ng nh\u00e3n khoa.<\/li>\n<\/ul>\n

      \u0110\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ea3o qu\u1ea3n<\/h2>\n

      B\u1ec1n, nh\u01b0ng c\u00f3 th\u1ec3 ph\u00e2n h\u1ee7y khi \u0111un n\u00f3ng. B\u1ea3o qu\u1ea3n trong bao b\u00ec k\u00edn kh\u00ed, n\u01a1i m\u00e1t, th\u00f4ng tho\u00e1ng.<\/p>\n

      T\u01b0\u01a1ng k\u1ef5<\/h2>\n

      L\u00e0 ch\u1ea5t oxy h\u00f3a: t\u01b0\u01a1ng k\u1ef5 v\u1edbi ch\u1ea5t kh\u1eed, acid m\u1ea1nh, kim lo\u1ea1i v\u00e0 h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1. Ph\u1ea3n \u1ee9ng n\u1ed5 v\u1edbi kali clorat ho\u1eb7c brom trifluorid.<\/p>\n

      S\u1ea3n xu\u1ea5t<\/h2>\n

      Ph\u1ea3n \u1ee9ng trao \u0111\u1ed5i gi\u1eefa natri nitrat v\u00e0 kali clorid.<\/p>\n

      An to\u00e0n v\u00e0 thao t\u00e1c<\/h2>\n
        \n
      • D\u00f9ng l\u00e0m ph\u1ee5 gia th\u1ef1c ph\u1ea9m v\u00e0 trong s\u1ea3n ph\u1ea9m r\u0103ng mi\u1ec7ng, ch\u0103m s\u00f3c m\u1eaft \u2013 \u0111\u01b0\u1ee3c coi l\u00e0 an to\u00e0n khi d\u00f9ng \u0111\u00fang m\u1ee5c \u0111\u00edch.<\/li>\n
      • D\u1ea1ng tinh khi\u1ebft k\u00edch \u1ee9ng h\u00f4 h\u1ea5p (ho, kh\u00f3 th\u1edf), da v\u00e0 m\u1eaft. Nu\u1ed1t l\u01b0\u1ee3ng l\u1edbn g\u00e2y vi\u00eam d\u1ea1 d\u00e0y \u2013 ru\u1ed9t n\u1eb7ng; ph\u01a1i nhi\u1ec5m l\u00e2u d\u00e0i l\u01b0\u1ee3ng nh\u1ecf c\u00f3 th\u1ec3 g\u00e2y thi\u1ebfu m\u00e1u, methemoglobin huy\u1ebft v\u00e0 vi\u00eam th\u1eadn.<\/li>\n
      • JECFA \u0111\u1eb7t ADI t\u1edbi 3,7 mg\/kg th\u1ec3 tr\u1ecdng (t\u00ednh theo ion nitrat).<\/li>\n
      • LD50<\/sub> (th\u1ecf, u\u1ed1ng): 1,9 g\/kg; (chu\u1ed9t c\u1ed1ng, u\u1ed1ng): 3,75 g\/kg.<\/li>\n
      • Ti\u1ebfp x\u00fac v\u1eadt li\u1ec7u kh\u00e1c c\u00f3 th\u1ec3 g\u00e2y ch\u00e1y; ph\u00e2n h\u1ee7y nhi\u1ec7t sinh kh\u00f3i r\u1ea5t \u0111\u1ed9c. Tr\u00e1nh t\u1ea1o v\u00e0 h\u00edt b\u1ee5i; \u0111eo k\u00ednh, \u0111\u1ed3 b\u1ea3o h\u1ed9 v\u00e0 thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 h\u00f4 h\u1ea5p.<\/li>\n<\/ul>\n

        T\u00ecnh tr\u1ea1ng ph\u00e1p l\u00fd<\/h2>\n
          \n
        • FDA ch\u1ea5p thu\u1eadn l\u00e0m ph\u1ee5 gia th\u1ef1c ph\u1ea9m tr\u1ef1c ti\u1ebfp; c\u00f3 trong EAFUS; \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn l\u00e0m ph\u1ee5 gia th\u1ef1c ph\u1ea9m t\u1ea1i ch\u00e2u \u00c2u (E252).<\/li>\n
        • C\u00f3 trong Canadian Natural Health Products Ingredients Database.<\/li>\n
        • C\u00f3 chuy\u00ean lu\u1eadn trong BP, Ph.Eur., USP-NF; c\u00f3 ti\u00eau chu\u1ea9n trong Food Chemicals Codex.<\/li>\n<\/ul>\n

          Ch\u1ea5t li\u00ean quan<\/h2>\n

          Phenylmercuric nitrat.<\/p>\n

          Ghi ch\u00fa:<\/strong> kali nitrat t\u1eebng \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m thu\u1ed1c \u2013 c\u00f4ng d\u1ee5ng l\u00e0m thu\u1ed1c n\u1eb1m ngo\u00e0i ph\u1ea1m vi b\u00e0i vi\u1ebft. S\u1ed1 EINECS 231-818-8.<\/p>\n

          Ngu\u1ed3n tham kh\u1ea3o<\/h2>\n

          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 Potassium Nitrate<\/em> trong: Sheskey P.J., Cook W.G., Cable C.G. (ch\u1ee7 bi\u00ean). Handbook of Pharmaceutical Excipients<\/em>, \u1ea5n b\u1ea3n 8. Pharmaceutical Press (London) & American Pharmacists Association (Washington DC), 2017. B\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

          \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

          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 2017. Ti\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 hi\u1ec7n h\u00e0nh tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng.<\/em><\/p>","protected":false},"excerpt":{"rendered":"

          Kali nitrat (E252) \u2013 ch\u1ea5t b\u1ea3o qu\u1ea3n thu\u1ed1c nh\u1ecf m\u1eaft, th\u00e0nh ph\u1ea7n kem \u0111\u00e1nh r\u0103ng Kali nitrat (KNO3, di\u00eam ti\u00eau, E252) l\u00e0 mu\u1ed1i v\u00f4 c\u01a1 d\u1ea1ng b\u1ed9t k\u1ebft tinh tr\u1eafng ho\u1eb7c tinh th\u1ec3 kh\u00f4ng m\u00e0u, v\u1ecb m\u1eb7n, m\u00e1t, h\u0103ng. Trong b\u00e0o ch\u1ebf, kali nitrat l\u00e0 ch\u1ea5t b\u1ea3o qu\u1ea3n trong thu\u1ed1c nh\u1ecf m\u1eaft v\u00e0 dung d\u1ecbch […]<\/p>\n","protected":false},"author":1,"featured_media":3634,"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-3635","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ta-duoc"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"acf":[],"uagb_featured_image_src":{"full":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-nitrat.png",1200,675,false],"thumbnail":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-nitrat-150x150.png",150,150,true],"medium":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-nitrat-300x169.png",300,169,true],"medium_large":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-nitrat-768x432.png",768,432,true],"large":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-nitrat-1024x576.png",1024,576,true],"1536x1536":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-nitrat.png",1200,675,false],"2048x2048":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-nitrat.png",1200,675,false],"trp-custom-language-flag":["https:\/\/cpc1.vn\/wp-content\/uploads\/2026\/09\/kali-nitrat-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 nitrat (E252) \u2013 ch\u1ea5t b\u1ea3o qu\u1ea3n thu\u1ed1c nh\u1ecf m\u1eaft, th\u00e0nh ph\u1ea7n kem \u0111\u00e1nh r\u0103ng Kali nitrat (KNO3, di\u00eam ti\u00eau, E252) l\u00e0 mu\u1ed1i v\u00f4 c\u01a1 d\u1ea1ng b\u1ed9t k\u1ebft tinh tr\u1eafng ho\u1eb7c tinh th\u1ec3 kh\u00f4ng m\u00e0u, v\u1ecb m\u1eb7n, m\u00e1t, h\u0103ng. Trong b\u00e0o ch\u1ebf, kali nitrat l\u00e0 ch\u1ea5t b\u1ea3o qu\u1ea3n trong thu\u1ed1c nh\u1ecf m\u1eaft v\u00e0 dung d\u1ecbch…","_links":{"self":[{"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/posts\/3635","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=3635"}],"version-history":[{"count":0,"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/posts\/3635\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/media\/3634"}],"wp:attachment":[{"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/media?parent=3635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/categories?post=3635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cpc1.vn\/en\/wp-json\/wp\/v2\/tags?post=3635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}