{"id":1266,"date":"2024-02-23T07:18:44","date_gmt":"2024-02-23T07:18:44","guid":{"rendered":"https:\/\/nbtchemical.com\/?post_type=product&p=1266"},"modified":"2024-02-26T16:27:50","modified_gmt":"2024-02-26T16:27:50","slug":"axit-sulfuric-h2so4-98","status":"publish","type":"product","link":"https:\/\/vinachemistry.com\/vi\/product\/axit-sulfuric-h2so4-98\/","title":{"rendered":"Axit Sulfuric \u2013 H2SO4 98%"},"content":{"rendered":"

C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc : H2SO4<\/strong>
\nT\u00ean h\u00f3a h\u1ecdc : Acid sulfuric; Hydro sulfate<\/strong>
\nXu\u1ea5t x\u1ee9: Vi\u1ec7t Nam, H\u00e0n Qu\u1ed1c<\/strong>
\nT\u1ef7 tr\u1ecdng : 1,84 g\/cm3<\/strong>
\nQui c\u00e1ch : Can\/phi\/tank\/xe t\u00e9c<\/strong><\/p>\n

Axit Sulfuric \u2013 H2SO4 98% l\u00e0 m\u1ed9t axit v\u00f4 c\u01a1 m\u1ea1nh, n\u00f3 l\u00e0 ch\u1ea5t l\u1ecfng s\u00e1nh nh\u01b0 d\u1ea7u, kh\u00f4ng m\u00e0u, lo\u1ea1i c\u00f3 l\u1eabn t\u1ea1p ch\u1ea5t c\u00f3 th\u1ec3 c\u00f3 m\u00e0u v\u00e0ng, x\u00e1m ho\u1eb7c n\u00e2u, kh\u00f4ng m\u00f9i, kh\u00f4ng bay h\u01a1i, n\u1eb7ng g\u1ea7n g\u1ea5p 2 l\u1ea7n n\u01b0\u1edbc (H2SO4 98% c\u00f3 D = 1,84 g\/cm3).<\/p>\n

T\u00ednh ch\u1ea5t v\u1eadt l\u00fd:<\/strong>
\nM\u1eb7c d\u00f9 c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t ax\u00edt sulfuric H2SO4 100%. Nh\u01b0ng n\u00f3 s\u1ebd m\u1ea5t SO3 \u1edf \u0111i\u1ec3m s\u00f4i \u0111\u1ec3 t\u1ea1o ra ax\u00edt 98,3%. Ax\u00edt 98% c\u0169ng \u1ed5n \u0111\u1ecbnh h\u01a1n khi l\u01b0u tr\u1eef, v\u00ec n\u00f3 l\u00e0 d\u1ea1ng th\u00f4ng th\u01b0\u1eddng c\u1ee7a ax\u00edt sulfuric \u0111\u1eadm \u0111\u1eb7c. C\u00e1c n\u1ed3ng \u0111\u1ed9 kh\u00e1c c\u1ee7a Axit Sulfuric \u2013 H2SO4 98% \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c m\u1ee5c \u0111\u00edch kh\u00e1c nhau. M\u1ed9t s\u1ed1 n\u1ed3ng \u0111\u1ed9 ph\u1ed5 bi\u1ebfn l\u00e0:<\/p>\n

10%, ax\u00edt sulfuric lo\u00e3ng d\u00f9ng trong ph\u00f2ng th\u00ed nghi\u1ec7m.
\n33,5%, ax\u00edt cho \u1eafc quy (s\u1eed d\u1ee5ng trong c\u00e1c \u1eafc quy ax\u00edt-ch\u00ec)
\n62,18%, ax\u00edt trong b\u1ec3 (ch\u00ec) hay \u0111\u1ec3 s\u1ea3n xu\u1ea5t ph\u00e2n b\u00f3n
\n77,67%, ax\u00edt trong th\u00e1p s\u1ea3n xu\u1ea5t hay ax\u00edt Glover.
\n98%, \u0111\u1eadm \u0111\u1eb7c
\nC\u0169ng c\u00f3 nhi\u1ec1u lo\u1ea1i c\u1ea5p \u0111\u1ed9 tinh khi\u1ebft kh\u00e1c nhau. Lo\u1ea1i Axit Sulfuric \u2013 H2SO4 98% k\u1ef9 thu\u1eadt l\u00e0 kh\u00f4ng tinh khi\u1ebft v\u00e0 th\u01b0\u1eddng c\u00f3 m\u00e0u. Nh\u01b0ng n\u00f3 th\u00edch h\u1ee3p cho vi\u1ec7c s\u1ea3n xu\u1ea5t ph\u00e2n b\u00f3n v\u00e0 c\u00f4ng nghi\u1ec7p. Lo\u1ea1i tinh khi\u1ebft nh\u01b0 lo\u1ea1i US Pharmacopoeia (USP) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c lo\u1ea1i d\u01b0\u1ee3c ph\u1ea9m v\u00e0 thu\u1ed1c nhu\u1ed9m.<\/p>\n

Khi c\u00f3 SO3(kh\u00ed) n\u1ed3ng \u0111\u1ed9 cao \u0111\u01b0\u1ee3c b\u1ed5 sung v\u00e0o ax\u00edt sulfuric, th\u00ec H2S2O7 \u0111\u01b0\u1ee3c t\u1ea1o ra. N\u00f3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ax\u00edt sulfuric b\u1ed1c kh\u00f3i hay \u00f4leum, ho\u1eb7c \u00edt th\u00f4ng d\u1ee5ng h\u01a1n l\u00e0 ax\u00edt Nordhausen. N\u1ed3ng \u0111\u1ed9 c\u1ee7a \u00f4leum ho\u1eb7c \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n theo % SO3 (g\u1ecdi l\u00e0 % \u00f4leum) ho\u1eb7c nh\u01b0 l\u00e0 \u201c% H2SO4 (l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh n\u1ebfu \u0111\u00e3 b\u1ed5 sung th\u00eam n\u01b0\u1edbc H2O); c\u00e1c n\u1ed3ng \u0111\u1ed9 ch\u1ee7 y\u1ebfu l\u00e0 40% \u00f4leum (109% H2SO4) v\u00e0 65% \u00f4leum (114,6% H2SO4). H2S2O7 tinh khi\u1ebft tr\u00ean th\u1ef1c t\u1ebf l\u00e0 m\u1ed9t ch\u1ea5t r\u1eafn c\u00f3 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y l\u00e0 36 \u00b0C.<\/p>\n

T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc:<\/strong>
\nPh\u1ea3n \u1ee9ng ng\u1eadm n\u01b0\u1edbc (hy\u0111rat h\u00f3a) c\u1ee7a ax\u00edt sulfuric l\u00e0 m\u1ed9t ph\u1ea3n \u1ee9ng t\u1ecfa nhi\u1ec7t cao. N\u1ebfu n\u01b0\u1edbc \u0111\u01b0\u1ee3c th\u00eam v\u00e0o ax\u00edt sulfuric \u0111\u1eadm \u0111\u1eb7c th\u00ec n\u00f3 b\u1ecb s\u00f4i v\u00e0 b\u1eafn ra r\u1ea5t nguy hi\u1ec3m. Do v\u1eady, khi pha lo\u00e3ng ax\u00edt ph\u1ea3i th\u00eam ax\u00edt v\u00e0o n\u01b0\u1edbc ch\u1ee9 kh\u00f4ng ph\u1ea3i th\u00eam n\u01b0\u1edbc v\u00e0o ax\u00edt. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y x\u1ea3y ra l\u00e0 do t\u1ef7 tr\u1ecdng t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a hai ch\u1ea5t l\u1ecfng, trong khi n\u01b0\u1edbc c\u00f3 t\u1ef7 tr\u1ecdngth\u1ea5p h\u01a1n ax\u00edt sulfuric. N\u00ean s\u1ebd c\u00f3 xu h\u01b0\u1edbng n\u1ed5i l\u00ean tr\u00ean. Ph\u1ea3n \u1ee9ng n\u00e0y n\u00f3i ch\u00ednh x\u00e1c h\u01a1n l\u00e0 ph\u1ea3n \u1ee9ng t\u1ea1o ra c\u00e1c ion hi\u0111r\u00f4ni, nh\u01b0 sau:<\/p>\n

H2SO4 + H2O \u2192 H3O+ + HSO4\u2013.
\nSau \u0111\u00f3:<\/p>\n

HSO4\u2013 + H2O \u2192 H3O+ + SO42-
\nDo s\u1ef1 hy\u0111rat h\u00f3a c\u1ee7a ax\u00edt sulfuric l\u00e0 ph\u1ea3n \u1ee9ng thu\u1eadn x\u00e9t theo nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc (\u0394H = 880 kJ\/mol). Ax\u00edt sulfuric l\u00e0 m\u1ed9t ch\u1ea5t h\u1ea5p th\u1ee5 n\u01b0\u1edbc r\u1ea5t t\u1ed1t, v\u00e0 n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t nhi\u1ec1u lo\u1ea1i hoa qu\u1ea3 kh\u00f4. \u00c1i l\u1ef1c c\u1ee7a ax\u00edt sulfuric \u0111\u1ed1i v\u1edbi n\u01b0\u1edbc l\u00e0 \u0111\u1ee7 m\u1ea1nh \u0111\u1ec3 chi\u1ebfm l\u1ea5y c\u00e1c nguy\u00ean t\u1eed hi\u0111r\u00f4 v\u00e0 \u00f4xy t\u1eeb c\u00e1c h\u1ee3p ch\u1ea5t ch\u1ee9a ch\u00fang. V\u00ed d\u1ee5, \u0111\u01b0\u1eddng glucoza(C6H12O6) s\u1ebd b\u1ecb ax\u00edt sulfuric \u0111\u1eadm \u0111\u1eb7c h\u00fat n\u01b0\u1edbc t\u1ea1o ra cacbon nguy\u00ean t\u1ed1 v\u00e0 dung d\u1ecbch ax\u00edt s\u1ebd lo\u00e3ng ra m\u1ed9t ch\u00fat: C6H12O6 \u2192 6C + 6H2O.<\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a Axit Sulfuric<\/strong>
\nAxit sunfuric l\u00e0 m\u1ed9t h\u00f3a ch\u1ea5t r\u1ea5t quan tr\u1ecdng v\u00e0 s\u1ea3n l\u01b0\u1ee3ng ti\u00eau th\u1ee5 c\u1ee7a n\u00f3 l\u00e0 ch\u1ec9 s\u1ed1 \u0111\u00e1nh gi\u00e1 v\u1ec1 s\u1ee9c m\u1ea1nh c\u1ee7a m\u1ed9t qu\u1ed1c gia.\u1ee8ng d\u1ee5ng ch\u00ednh c\u1ee7a axit n\u00e0y l\u00e0 s\u1ea3n xu\u1ea5t ph\u00e2n b\u00f3n nh\u01b0 ph\u00e2n h\u00f3a h\u1ecdc photphat, natri photphat hay c\u00f2n \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t ch\u1ea5t trung t\u00e2m trong c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t.
\nC\u00f4ng d\u1ee5ng kh\u00e1c n\u1eefa l\u00e0 d\u00f9ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t thu\u1ed1c tr\u1eeb s\u00e2u, ch\u1ea5t t\u1ea9y r\u1eeda, t\u01a1 s\u1ee3i h\u00f3a h\u1ecdc, ch\u1ea5t d\u1ebbo, s\u01a1n m\u00e0u\u2026
\nN\u00f3 c\u00f2n \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t axit photphoric.
\nNgo\u00e0i ra n\u00f3 c\u00f2n d\u00f9ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t nh\u00f4m sulfat, nh\u00f4m hydroxiit v\u00e0 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn nh\u01b0 l\u00e0 ph\u00e8n gi\u1ea5y.
\nAxit sunfuric \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c m\u1ee5c \u0111\u00edch kh\u00e1c trong c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t. V\u00ed d\u1ee5, l\u00e0 ch\u1ea5t x\u00fac t\u00e1c ccho qu\u00e1 tr\u00ecnh chuy\u1ec3n h\u00f3a cyclohexanno th\u00e0nh caprolactam, n\u00f3 c\u00f2n \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t ra axit clohidric t\u1eeb mu\u1ed1i \u0103n b\u1eb1ng c\u00f4ng ngh\u1ec7 Mannheim.
\nTrong c\u00f4ng nghi\u1ec7p h\u00f3a d\u1ea7u th\u00ec n\u00f3 l\u1ea1i \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 l\u00e0m ch\u1ea5t x\u00fac t\u00e1c cho ph\u1ea3n \u1ee9ng isobutan v\u1edbi isobulen \u0111\u1ec3 t\u1ea1o ra isooctan (h\u1ee3p ch\u1ea5t l\u00e0m t\u0103ng ch\u1ec9 s\u1ed1 octan c\u1ee7a x\u0103ng)
\nH\u1ed7n h\u1ee3p c\u1ee7a axit sulfuric v\u1edbi n\u01b0\u1edbc \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m ch\u00e1t \u0111i\u1ec7n gi\u1ea3i trong h\u00e0ng lo\u1ea1t b\u00ecnh \u1eafc quy\u2026.<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc : H2SO4 T\u00ean h\u00f3a h\u1ecdc : Acid sulfuric; Hydro sulfate Xu\u1ea5t x\u1ee9: Vi\u1ec7t Nam, H\u00e0n Qu\u1ed1c T\u1ef7 …<\/p>\n","protected":false},"featured_media":1406,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[15],"product_tag":[],"class_list":{"0":"post-1266","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-giai-phap-tong-the","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/product\/1266","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=1266"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/media\/1406"}],"wp:attachment":[{"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/media?parent=1266"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/product_cat?post=1266"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/vinachemistry.com\/vi\/wp-json\/wp\/v2\/product_tag?post=1266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}