{"id":136404,"date":"2025-09-26T13:48:11","date_gmt":"2025-09-26T05:48:11","guid":{"rendered":"https:\/\/www.alpapowder.com\/136404\/"},"modified":"2025-09-26T13:48:11","modified_gmt":"2025-09-26T05:48:11","slug":"bari-sulfat-bien-tinh-sds-dung-trong-my-pham","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/136404\/","title":{"rendered":"Bari sulfat bi\u1ebfn t\u00ednh SDS d\u00f9ng trong m\u1ef9 ph\u1ea9m"},"content":{"rendered":"

\"\"<\/p>\n

Ch\u1ea5t l\u00e0m m\u1edd m\u1ef9 ph\u1ea9m l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c hi\u1ec7u \u1ee9ng nh\u01b0 che khuy\u1ebft \u0111i\u1ec3m v\u00e0 l\u00e0m s\u00e1ng da; \u0111\u1ed9 ph\u00e2n t\u00e1n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a ch\u00fang \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n

Bari sulfat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong m\u1ef9 ph\u1ea9m do c\u00f3 ch\u1ec9 s\u1ed1 kh\u00fac x\u1ea1 cao, \u0111\u1ed9 m\u1edd \u0111\u1ee5c t\u1ed1t v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc. Tuy nhi\u00ean, xu h\u01b0\u1edbng k\u1ebft t\u1ee5 c\u1ee7a n\u00f3 h\u1ea1n ch\u1ebf vi\u1ec7c \u1ee9ng d\u1ee5ng trong m\u1ef9 ph\u1ea9m.<\/p>\n

Nghi\u00ean c\u1ee9u n\u00e0y kh\u1ea3o s\u00e1t \u0111\u1ed9 ph\u00e2n t\u00e1n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a bari sulfat trong n\u1ec1n m\u1ef9 ph\u1ea9m b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ebf bari sulfat si\u00eau m\u1ecbn b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n bi, v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00e1c quy tr\u00ecnh bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t v\u00e0 ph\u00e2n t\u00e1n.<\/p>\n

1. Ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh<\/p>\n

(1) Ti\u1ec1n x\u1eed l\u00fd Bari sulfat<\/p>\n

Bari sulfat c\u1ea5p c\u00f4ng nghi\u1ec7p \u0111\u01b0\u1ee3c s\u1ea5y kh\u00f4 v\u00e0 s\u00e0ng qua l\u01b0\u1edbi s\u00e0ng 200 mesh theo t\u1eebng m\u1ebb. V\u1edbi m\u1ed7i m\u1ebb, 100g bari sulfat \u0111\u01b0\u1ee3c tr\u1ed9n v\u1edbi 0,5g axit stearic tr\u00ean m\u00e1y nghi\u1ec1n hai tr\u1ee5c trong 3 ph\u00fat. Sau \u0111\u00f3, c\u00e1c tr\u1ee5c \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ebfn khe h\u1edf t\u1ed1i thi\u1ec3u v\u00e0 \u0111\u01b0\u1ee3c s\u00e0ng qua 6 l\u1ea7n, ti\u1ebfp theo l\u00e0 l\u1ea7n s\u00e0ng cu\u1ed1i c\u00f9ng v\u1edbi khe h\u1edf 2mm, ho\u00e0n t\u1ea5t qu\u00e1 tr\u00ecnh tr\u1ed9n ban \u0111\u1ea7u. H\u1ed7n h\u1ee3p bari sulfat \u0111\u01b0\u1ee3c s\u1ea5y kh\u00f4 \u1edf 80\u00b0C trong 4 gi\u1edd \u0111\u1ec3 thu \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m \u0111\u00e3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd s\u01a1 b\u1ed9.<\/p>\n

(2) Bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t<\/p>\n

S\u1eed d\u1ee5ng 100 ph\u1ea7n c\u00f4ng th\u1ee9c n\u1ec1n, bari sulfat \u0111\u00e3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd s\u01a1 b\u1ed9 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o v\u1edbi c\u00e1c t\u1ef7 l\u1ec7 kh\u00e1c nhau v\u00e0 \u0111\u01b0\u1ee3c bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t \u1edf 60\u00b0C. Trong qu\u00e1 tr\u00ecnh bi\u1ebfn t\u00ednh, 1,5 ph\u1ea7n natri dodecyl sulfat \u0111\u01b0\u1ee3c th\u00eam v\u00e0o, v\u00e0 h\u1ed7n h\u1ee3p \u0111\u01b0\u1ee3c tr\u1ed9n \u0111\u1ec1u. C\u00e1c tr\u1ee5c \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ebfn khe h\u1edf t\u1ed1i thi\u1ec3u v\u00e0 \u0111\u01b0\u1ee3c \u0111\u01b0a qua 6 l\u1ea7n tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c l\u00e0m ph\u1eb3ng, thu \u0111\u01b0\u1ee3c bari sulfat \u0111\u00e3 \u0111\u01b0\u1ee3c bi\u1ebfn t\u00ednh.<\/p>\n

(3) Chu\u1ea9n b\u1ecb ph\u00e2n t\u00e1n<\/p>\n

Bari sulfat \u0111\u00e3 \u0111\u01b0\u1ee3c bi\u1ebfn t\u00ednh \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1n v\u00e0o c\u00f4ng th\u1ee9c n\u1ec1n \u1edf c\u00e1c t\u1ef7 l\u1ec7 kh\u00e1c nhau b\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p khu\u1ea5y c\u01a1 h\u1ecdc v\u00e0 ph\u00e2n t\u00e1n si\u00eau \u00e2m. C\u1ee5 th\u1ec3, m\u1ed9t l\u01b0\u1ee3ng bari sulfat \u0111\u00e3 \u0111\u01b0\u1ee3c bi\u1ebfn t\u00ednh nh\u1ea5t \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u00e2n, th\u00eam v\u00e0o n\u01b0\u1edbc kh\u1eed ion v\u00e0 ph\u00e2n t\u00e1n si\u00eau \u00e2m trong 10 ph\u00fat. Sau \u0111\u00f3, t\u1eeb t\u1eeb th\u00eam c\u00f4ng th\u1ee9c n\u1ec1n v\u00e0o trong khi khu\u1ea5y, v\u00e0 h\u1ed7n h\u1ee3p \u0111\u01b0\u1ee3c khu\u1ea5y th\u00eam 30 ph\u00fat n\u1eefa.<\/p>\n

2. Quy tr\u00ecnh Bi\u1ebfn t\u00ednh T\u1ed1i \u01b0u v\u00e0 \u0110\u00e1nh gi\u00e1 Hi\u1ec7u su\u1ea5t<\/p>\n

(1) Quy tr\u00ecnh Bi\u1ebfn t\u00ednh T\u1ed1i \u01b0u<\/p>\n

Th\u00f4ng qua nghi\u00ean c\u1ee9u c\u00f3 h\u1ec7 th\u1ed1ng, c\u00e1c \u0111i\u1ec1u ki\u1ec7n quy tr\u00ecnh t\u1ed1i \u01b0u \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh: Bari sunfat c\u1ea5p c\u00f4ng nghi\u1ec7p \u0111\u01b0\u1ee3c s\u00e0ng qua l\u01b0\u1edbi s\u00e0ng 200 m\u1eaft v\u00e0 s\u1ea5y kh\u00f4 \u1edf 60\u00b0C trong 4 gi\u1edd. Natri dodecyl sunfat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t v\u1edbi t\u1ef7 l\u1ec7 1,5% tr\u1ecdng l\u01b0\u1ee3ng bari sunfat, v\u00e0 qu\u00e1 tr\u00ecnh bi\u1ebfn t\u00ednh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf 60\u00b0C trong 2 gi\u1edd. Trong qu\u00e1 tr\u00ecnh ph\u00e2n t\u00e1n, h\u00e0m l\u01b0\u1ee3ng bari sunfat \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf m\u1ee9c 15%\u201320%, nhi\u1ec7t \u0111\u1ed9 ph\u00e2n t\u00e1n \u1edf 60\u00b0C, th\u1eddi gian ph\u00e2n t\u00e1n l\u00e0 15 ph\u00fat v\u00e0 pH c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c duy tr\u00ec \u1edf m\u1ee9c 8,0\u20138,5. K\u1ebft h\u1ee3p khu\u1ea5y c\u01a1 h\u1ecdc v\u00e0 ph\u00e2n t\u00e1n si\u00eau \u00e2m \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n

Trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n n\u00e0y, h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n thu \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m sau: ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u1ed3ng \u0111\u1ec1u v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t ch\u00ednh l\u00e0 0,8\u20131,2 \u03bcm; \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh ph\u00e2n t\u00e1n t\u1ed1t, kh\u00f4ng b\u1ecb l\u1eafng \u0111\u1ecdng \u0111\u00e1ng k\u1ec3 trong v\u00f2ng 7 ng\u00e0y; v\u00e0 \u0111\u1ed9 ph\u1ee7 tuy\u1ec7t v\u1eddi v\u1edbi l\u1edbp m\u00e0ng \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 li\u00ean t\u1ee5c.<\/p>\n

(2) \u0110\u00e1nh gi\u00e1 \u1ee9ng d\u1ee5ng trong m\u1ef9 ph\u1ea9m<\/p>\n

Ph\u00e2n t\u00e1n bari sulfat \u0111\u00e3 \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 trong c\u00e1c c\u00f4ng th\u1ee9c m\u1ef9 ph\u1ea9m: Vi\u1ec7c th\u00eam 15% ph\u00e2n t\u00e1n bari sulfat \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh v\u00e0o kem n\u1ec1n cho \u0111\u1ed9 che ph\u1ee7 t\u1ed1t v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng d\u1ec5 ch\u1ecbu, v\u1edbi kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch t\u1ed1t v\u1edbi n\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n v\u00e0 kh\u00f4ng b\u1ecb t\u00e1ch pha.<\/p>\n

Vi\u1ec7c th\u00eam 20% ph\u00e2n t\u00e1n v\u00e0o c\u00f4ng th\u1ee9c kem che khuy\u1ebft \u0111i\u1ec3m \u0111\u00e3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 che ph\u1ee7, duy tr\u00ec \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh t\u1ed1t v\u00e0 mang l\u1ea1i hi\u1ec7u qu\u1ea3 t\u1ef1 nhi\u00ean v\u00e0 l\u00e2u d\u00e0i.<\/p>\n

K\u1ebft qu\u1ea3 \u0111\u00e1nh gi\u00e1 \u1ee9ng d\u1ee5ng ch\u1ee9ng minh r\u1eb1ng ph\u00e2n t\u00e1n bari sulfat \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng quy tr\u00ecnh t\u1ed1i \u01b0u h\u00f3a th\u1ec3 hi\u1ec7n hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi trong c\u00e1c \u1ee9ng d\u1ee5ng m\u1ef9 ph\u1ea9m. ALPA chuy\u00ean v\u1ec1 nghi\u1ec1n v\u00e0 ph\u00e2n lo\u1ea1i si\u00eau m\u1ecbn \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a gi\u00e1 tr\u1ecb s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n. Chuy\u00ean v\u1ec1 nghi\u1ec1n v\u00e0 ph\u00e2n lo\u1ea1i Barit si\u00eau m\u1ecbn.<\/p>\n","protected":false},"excerpt":{"rendered":"

Bari sunfat c\u1ea5p c\u00f4ng nghi\u1ec7p \u0111\u01b0\u1ee3c s\u1ea5y kh\u00f4 v\u00e0 s\u00e0ng qua l\u01b0\u1edbi 200 l\u01b0\u1edbi theo t\u1eebng m\u1ebb<\/p>\n","protected":false},"author":7,"featured_media":136379,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-136404","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghiep-tin-tuc-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/136404","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=136404"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/136404\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/136379"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=136404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=136404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=136404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}