{"id":1314,"date":"2024-02-24T08:10:33","date_gmt":"2024-02-24T08:10:33","guid":{"rendered":"https:\/\/nbtchemical.com\/?post_type=product&p=1314"},"modified":"2024-02-26T12:26:44","modified_gmt":"2024-02-26T12:26:44","slug":"chromium-trioxide-cro3-99","status":"publish","type":"product","link":"https:\/\/vinachemistry.com\/vi\/product\/chromium-trioxide-cro3-99\/","title":{"rendered":"Chromium trioxide CrO3 99%"},"content":{"rendered":"

T\u00ean s\u1ea3n ph\u1ea9m: Chromium trioxide<\/strong>
\nT\u00ean g\u1ecdi kh\u00e1c: Crom(VI) oxit<\/strong>
\nC\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc: CrO3<\/strong>
\nCAS: 1333-82-0<\/strong>
\nH\u00e0m l\u01b0\u1ee3ng: 99%<\/strong>
\nXu\u1ea5t x\u1ee9: Nga<\/strong>
\n\u0110\u00f3ng g\u00f3i: 50kg\/th\u00f9ng<\/strong><\/p>\n

Chromium trioxide hay Crom (VI) oxit l\u00e0 h\u1ee3p ch\u1ea5t v\u00f4 c\u01a1 c\u00f3 c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc l\u00e0 CrO3, \u1edf \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng ch\u00fang l\u00e0 h\u1ee3p ch\u1ea5t \u1edf tr\u1ea1ng th\u00e1i r\u1eafn, d\u1ea1ng mi\u1ebfng m\u1ecfng ho\u1eb7c vi\u00ean c\u00f3 m\u00e0u \u0111\u1ecf t\u00edm, khi b\u1ecb \u01b0\u1edbt s\u1ebd chuy\u1ec3n sang m\u00e0u cam s\u00e1ng. Acid n\u00e0y tan t\u1ed1t trong n\u01b0\u1edbc \u0111\u1eb7c bi\u1ec7t \u0111y l\u00e0 h\u00f3a ch\u1ea5t c\u00f3 t\u00ednh oxy h\u00f3a r\u1ea5t m\u1ea1nh. \u1ee8ng d\u1ee5ng ch\u1ee7 y\u1ebfu trong xi m\u1ea1, s\u1ea3n xu\u1ea5t h\u1ed3ng ng\u1ecdc t\u1ed5ng h\u1ee3p, s\u1ea3n xu\u1ea5t g\u1ed1m s\u1ee9, s\u01a1n, luy\u1ec7n kim, x\u1eed l\u00fd g\u1ed7, d\u1ec7t nhu\u1ed9m\u2026<\/p>\n

Nh\u1eefng t\u00ednh ch\u1ea5t l\u00fd \u2013 h\u00f3a \u0111\u1eb7c tr\u01b0ng c\u1ee7a Chromium trioxide<\/strong>
\nCrom(VI) oxit t\u1ed3n t\u1ea1i \u1edf tr\u1ea1ng th\u00e1i r\u1eafn, d\u1ea1ng c\u00e1c mi\u1ebfng m\u1ecfng ho\u1eb7c vi\u00ean m\u1ecfng c\u00f3 s\u1eafc \u0111\u1ecf t\u00edm khi \u0111\u1ea1t tr\u1ea1ng th\u00e1i kh\u00f4
\nCrO3 l\u00e0 h\u00f3a ch\u1ea5t kh\u00f4ng m\u00f9i, c\u00f3 t\u00ednh h\u00e1o n\u01b0\u1edbc, m\u00e0u \u0111\u1ecf s\u1eabm, d\u1ec5 ch\u1ea3y r\u1eefa v\u00e0 l\u00e0 ch\u1ea5t oxi ho\u00e1 m\u1ea1nh
\nKh\u1ed1i l\u01b0\u1ee3ng ri\u00eang l\u00e0 3,25 g\/cm3
\nNhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y \u0111\u1ea1t 197 \u00b0C (470 K, 387 \u00b0F)
\n\u0110i\u1ec3m s\u00f4i l\u00e0 250 \u00b0C (523 K, 482 \u00b0F)
\n\u0110\u1ed9 h\u00f2a tan 164,8 g\/100 mL (0 \u2103)
\nNhi\u1ec7t ph\u00e2n Crom(VI) oxit t\u1ea1o th\u00e0nh Cr2O3 v\u00e0 gi\u1ea3i ph\u00f3ng kh\u00ed oxi
\n4CrO3 \u2192 2Cr2O3 + 3O2\u2191<\/p>\n

Ph\u1ea3n \u1ee9ng v\u1edbi dung d\u1ecbch x\u00fat l\u1ecfng:
\n2NaOH + CrO3 \u2192 H2O + Na2CrO4<\/p>\n

Ph\u1ea3n \u1ee9ng v\u1edbi dung d\u1ecbch ax\u00edt:
\n12HCl + 2CrO3 \u2192 3Cl2 + 2CrCl3 + 6H2O<\/p>\n

Ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc t\u1ea1o th\u00e0nh axit dicromic:
\nH2O + 2CrO3 \u2192 H2Cr2O7<\/p>\n

S\u1ea3n xu\u1ea5t, \u0111i\u1ec1u ch\u1ebf Chromium trioxide nh\u01b0 th\u1ebf n\u00e0o? <\/strong>
\n– Cho axit H2SO4 \u0111\u1eb7c t\u00e1c d\u1ee5ng v\u1edbi dung d\u1ecbch b\u00e3o h\u00f2a Kali \u0111icromat ho\u1eb7c Kali cromat:<\/p>\n

K2Cr2O7 + 2H2SO4 \u2192 2KHSO4 + 2CrO3 + H2O<\/p>\n

Nh\u1eefng \u1ee9ng d\u1ee5ng c\u1ee7a h\u00f3a ch\u1ea5t Crom(VI) oxit trong \u0111\u1eddi s\u1ed1ng, s\u1ea3n xu\u1ea5t<\/strong>
\n– \u1ee8ng d\u1ee5ng h\u00e0ng \u0111\u1ea7u c\u1ee7a Crom(VI) oxit l\u00e0 s\u1eed d\u1ee5ng trong m\u1ea1 cr\u00f4m: CrO3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c ng\u01b0\u1eddi ta k\u1ebft h\u1ee3p c\u00f9ng v\u1edbi c\u00e1c ch\u1ea5t ph\u1ee5 gia c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn quy tr\u00ecnh m\u1ea1 nh\u01b0ng ch\u00fang l\u1ea1i kh\u00f4ng ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c trioxit. \u0110\u1ed3ng th\u1eddi nh\u1eefng trioxit n\u00e0y s\u1ebd t\u00e1c d\u1ee5ng v\u1edbi ca\u0111imi, k\u1ebdm, v\u00e0 kim lo\u1ea1i kh\u00e1c \u0111\u1ec3 th\u1ee5 \u0111\u1ed9ng h\u00f3a crom nh\u1eb1m ch\u1ed1ng l\u1ea1i s\u1ef1 \u0103n m\u00f2n.<\/p>\n

– Crom(VI) oxit \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t \u0111\u00e1 qu\u00fd t\u1ed5ng h\u1ee3p (\u0111\u00e1 h\u1ed3ng ng\u1ecdc) nh\u1edd v\u00e0o kh\u1ea3 n\u0103ng t\u1ea1o m\u00e0u c\u1ef1c t\u1ed1t c\u1ee7a h\u1ee3p ch\u1ea5t.<\/p>\n

– Trong ng\u00e0nh d\u1ec7t nhu\u1ed9m, s\u01a1n, in \u1ea5n: Crom(VI) oxit l\u00e0 h\u00f3a ch\u1ea5t c\u00f3 t\u00ednh oxy h\u00f3a m\u1ea1nh v\u00e0 t\u1ea1o ph\u1ee9c m\u00e0u \u0111\u1eb9p v\u00e0 l\u00e0m ch\u1ea5t c\u1ea7m m\u00e0u v\u1ea3i n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn trong d\u1ec7t nhu\u1ed9m v\u00e0 in \u1ea5n.<\/p>\n

– Trong s\u1eeda ch\u1eefa c\u00e1c lo\u1ea1i nh\u1ea1c c\u1ee5 b\u1eb1ng \u0111\u1ed3ng: Khi ng\u01b0\u1eddi ta s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p gi\u1eefa CrO3 v\u00e0 H2SO4 s\u1ebd cho ra H2CrO4 l\u00e0 lao\u1ecb dung d\u1ecbch c\u00f3 t\u00ednh oxy h\u00f3a v\u00e0 \u0103n m\u00f2n m\u1ea1nh. Ch\u00fang c\u00f3 t\u00e1c d\u1ee5ng l\u00e0m s\u00e1ng nguy\u00ean li\u1ec7u \u0111\u1ed3ng thau, gi\u00fap \u0111\u1ec3 l\u1ea1i l\u1edbp g\u1ec9 m\u00e0u v\u00e0ng s\u00e1ng tr\u00ean \u0111\u1ed3ng thau \u0111\u1ed3ng th\u1eddi l\u00e0m t\u0103ng th\u00eam gi\u00e1 tr\u1ecb v\u00e0 t\u00ednh th\u1ea9m m\u1ef9 cho s\u1ea3n ph\u1ea9m. Ngo\u00e0i ra h\u1ee3p ch\u1ea5t n\u00e0y c\u00f2n c\u00f3 t\u00e1c d\u1ee5ng l\u00e0m s\u1ea1ch k\u00ednh, x\u1eed l\u00fd v\u00e0 b\u1ea3o qu\u1ea3n g\u1ed7.<\/p>\n

Nh\u1eefng l\u01b0u \u00fd khi s\u1eed d\u1ee5ng v\u00e0 b\u1ea3o qu\u1ea3n Chromium trioxide<\/strong>
\n– Tuy c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng quan tr\u1ecdng trong \u0111\u1eddi s\u1ed1ng s\u1ea3n xu\u1ea5t nh\u01b0ng Crom(VI) oxit c\u0169ng l\u00e0 h\u00f3a ch\u1ea5t c\u00f3 t\u00ednh oxi h\u00f3a v\u00e0 \u0103n m\u00f2n m\u1ea1nh, ch\u00fang s\u1ebd g\u00e2y b\u1ecfng v\u00e0 \u0103n m\u00f2n da n\u1ebfu ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp, d\u1ec5 g\u00e2y ch\u00e1y n\u1ed5 v\u00ec t\u00ednh oxy h\u00f3a m\u1ea1nh. \u0110\u1ed3ng th\u1eddi ch\u00fang c\u0169ng l\u00e0 ch\u1ea5t kh\u00e1 \u0111\u1ed9c v\u00e0 c\u00f3 nguy c\u01a1 g\u00e2y ung th\u01b0, v\u00ec v\u1eady c\u1ea7n trang b\u1ecb \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ed3 b\u1ea3o h\u1ed9 an to\u00e0n h\u00f3a ch\u1ea5t khi ti\u1ebfp x\u00fac.<\/p>\n

– L\u00e0 ch\u1ea5t g\u00e2y nguy h\u1ea1i cho m\u00f4i tr\u01b0\u1eddng n\u00ean c\u1ea7n tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t c\u00e1c quy \u0111\u1ecbnh s\u1eed d\u1ee5ng h\u00f3a ch\u1ea5t, d\u00f9ng v\u1edbi l\u01b0\u1ee3ng nh\u1ecf v\u00e0 nghi\u00eam c\u1ea5m tuy\u1ec7t \u0111\u1ed1i c\u00e1c h\u00e0nh vi x\u1ea3 th\u1ea3i ch\u01b0a qua x\u1eed l\u00fd ra m\u00f4i tr\u01b0\u1eddng t\u1ef1 nhi\u00ean.<\/p>\n

– L\u00e0 ch\u1ea5t oxy h\u00f3a v\u00e0 \u0103n m\u00f2n m\u1ea1nh n\u00ean c\u1ea7n ph\u1ea3i b\u1ea3o qu\u1ea3n trong th\u00f9ng k\u00edn n\u1eafp, c\u00f3 tr\u00e1ng l\u1edbp nh\u1ef1a epoxi. Tr\u00e1nh \u0111\u1ec3 c\u00f9ng c\u00e1c ch\u1ea5t d\u1ec5 g\u00e2y ch\u00e1y n\u1ed5 nh\u01b0 dung m\u00f4i, v\u1ea3i, gi\u1ea5y\u2026<\/p>\n","protected":false},"excerpt":{"rendered":"

T\u00ean s\u1ea3n ph\u1ea9m: Chromium trioxide T\u00ean g\u1ecdi kh\u00e1c: Crom(VI) oxit C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc: CrO3 CAS: 1333-82-0 H\u00e0m l\u01b0\u1ee3ng: 99% Xu\u1ea5t …<\/p>\n","protected":false},"featured_media":1315,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[45,39],"product_tag":[],"class_list":["post-1314","product","type-product","status-publish","has-post-thumbnail","product_cat-hoa-chat-cho-cong-nghe-ma-chrome","product_cat-hoa-chat-xi-ma","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/product\/1314","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/comments?post=1314"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/media\/1315"}],"wp:attachment":[{"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/media?parent=1314"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/product_cat?post=1314"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/product_tag?post=1314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}