T\u00ednh ch\u1ea5t v\u1eadt l\u00fd:<\/strong><\/em><\/p>\n

H\u00f3a ch\u1ea5t NaOH 99 Trung Qu\u1ed1c\u00a0– Caustic soda hay c\u00f2n g\u1ecdi l\u00e0 x\u00fat c\u00f3 nhi\u1ec1u d\u1ea1ng nh\u01b0: NaOH 99 d\u1ea1ng v\u1ea9y \u0111\u1ee5c kh\u00f4ng m\u00e0u \u2013 x\u00fat v\u1ea3y, NaOH d\u1ea1ng h\u1ea1t \u2013 x\u00fat h\u1ea1t, NaOH d\u1ea1ng dung d\u1ecbch b\u00e3o h\u00f2a 50%.
\nH\u00f3a ch\u1ea5t NaOH l\u00e0 h\u00f3a ch\u1ea5t d\u1ec5 tan trong n\u01b0\u1edbc, trong c\u1ed3n v\u00e0 trong glycerin nh\u01b0ng kh\u00f4ng h\u00f2a tan trong ether v\u00e0 c\u00e1c dung m\u00f4i kh\u00f4ng ph\u00e2n c\u1ef1c kh\u00e1c.
\nT\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1c hydrat h\u00f3a c\u1ee7a ax\u00edt sulfuric, gi\u1ea3i th\u1ec3 natri hydroxit r\u1eafn trong n\u01b0\u1edbc l\u00e0 m\u1ed9t ph\u1ea3n \u1ee9ng t\u1ecfa nhi\u1ec7t cao, trong \u0111\u00f3 m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn nhi\u1ec7t \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng.<\/p>\n

T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc:<\/strong><\/em><\/p>\n

H\u00f3a ch\u1ea5t NaOH ph\u1ea3n \u1ee9ng v\u1edbi axit<\/p>\n

H\u00f3a ch\u1ea5t NaOh – caustic soda hay g\u00f2n g\u1ecdi l\u00e0 Sodium hydroxide, ph\u1ea3n \u1ee9ng v\u1edbi axit proton \u0111\u1ec3 t\u1ea1o ra n\u01b0\u1edbc v\u00e0 c\u00e1c mu\u1ed1i t\u01b0\u01a1ng \u1ee9ng. V\u00ed d\u1ee5, khi NaOh ph\u1ea3n \u1ee9ng v\u1edbi axit hydrochloric, natri clorua \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh:<\/p>\n

NaOH (aq) + HCl (aq) \u2192 NaCl (aq) + H2O (l)<\/p>\n

N\u00f3i chung, ph\u1ea3n \u1ee9ng trung h\u00f2a nh\u01b0 v\u1eady \u0111\u01b0\u1ee3c \u0111\u1ea1i di\u1ec7n b\u1edfi m\u1ed9t ph\u01b0\u01a1ng tr\u00ecnh \u0111\u01a1n gi\u1ea3n ion net:<\/p>\n

OH-(aq) + H + (aq) \u2192 H2O (l)<\/p>\n

\u0110\u00e2y l\u00e0 lo\u1ea1i ph\u1ea3n \u1ee9ng v\u1edbi axit m\u1ea1nh t\u1ea1o ra nhi\u1ec7t. Ph\u1ea3n \u1ee9ng acid nh\u01b0 v\u1eady c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 chu\u1ea9n \u0111\u1ed9 (ph\u00e9p ph\u00e2n t\u00edch th\u00ea\u0309 t\u00edch). Tuy nhi\u00ean, h\u00f3a ch\u1ea5t NaOH kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ti\u00eau chu\u1ea9n ch\u00ednh b\u1edfi v\u00ec n\u00f3 c\u00f3 t\u00ednh h\u00fat \u1ea9m v\u00e0 h\u1ea5p th\u1ee5 carbon dioxide t\u1eeb kh\u00f4ng kh\u00ed.<\/p>\n

H\u00f3a ch\u1ea5t NaOH d\u1ea1ng v\u1ea3y – x\u00fat v\u1ea3y<\/strong><\/h4>\n

H\u00f3a ch\u1ea5t NaOH Ph\u1ea3n \u1ee9ng v\u1edbi oxit axit<\/h2>\n

H\u00f3a ch\u1ea5t NaOH – Sodium hydroxide c\u0169ng ph\u1ea3n \u1ee9ng v\u1edbi oxit axit, nh\u01b0 sulfur dioxide. Ph\u1ea3n \u1ee9ng n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 “ch\u00e0” c\u00e1c kh\u00ed \u0111\u1ed9c h\u1ea1i (nh\u01b0 SO 2 v\u00e0 H 2 S) s\u1ea3n xu\u1ea5t trong vi\u1ec7c \u0111\u1ed1t than v\u00e0 do \u0111\u00f3 ng\u0103n ng\u1eeba s\u1ef1 ph\u00e1t t\u00e1n c\u1ee7a ch\u00fang v\u00e0o kh\u00ed quy\u1ec3n. V\u00ed d\u1ee5,<\/p>\n

2 NaOH + CO2 \u2192 Na2CO3 + H2O<\/p>\n

NaOH Ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c kim lo\u1ea1i l\u01b0\u1ee1ng t\u00ednh v\u00e0 oxit<\/h2>\n

H\u00f3a ch\u1ea5t NaOH – Sodium hydroxide ch\u1eadm ph\u1ea3n \u1ee9ng v\u1edbi th\u1ee7y tinh \u0111\u1ec3 t\u1ea1o th\u00e0nh natri silicat. B\u1edfi v\u00ec \u0111i\u1ec1u n\u00e0y, c\u00e1c m\u1ed1i n\u1ed1i th\u1ee7y tinh v\u00e0 stopcocks ti\u1ebfp x\u00fac v\u1edbi h\u00f3a ch\u1ea5t NaOH – sodium hydroxide c\u00f3 xu h\u01b0\u1edbng “\u0111\u00f3ng b\u0103ng”. B\u00ecnh v\u00e0 l\u00f2 ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc th\u1ee7y tinh b\u1ecb h\u01b0 h\u1ecfng do ti\u1ebfp x\u00fac l\u00e2u v\u1edbi h\u00f3a ch\u1ea5t NaOH – sodium hydroxide n\u00f3ng. H\u00f3a ch\u1ea5t NaOh\u00a0 – Sodium hydroxide kh\u00f4ng t\u1ea5n c\u00f4ng s\u1eaft kh\u00f4ng c\u00f3 t\u00ednh ch\u1ea5t l\u01b0\u1ee1ng t\u00ednh. M\u1ed9t s\u1ed1 kim lo\u1ea1i chuy\u1ec3n ti\u1ebfp, tuy nhi\u00ean, c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng m\u1ea1nh m\u1ebd b\u1eb1ng natri hydroxit.<\/p>\n

NaOH – Ch\u00e2\u0301t k\u00ea\u0301t t\u1ee7a<\/h3>\n

Kh\u00f4ng gi\u1ed1ng nh\u01b0 h\u00f3a ch\u1ea5t NaOH, c\u00e1c hydroxit c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c kim lo\u1ea1i chuy\u1ec3n ti\u1ebfp l\u00e0 kh\u00f4ng h\u00f2a tan, v\u00e0 do \u0111\u00f3 natri hydroxit c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u1ebft t\u1ee7a hydroxit kim lo\u1ea1i chuy\u1ec3n ti\u1ebfp. C\u00e1c m\u00e0u s\u1eafc sau \u0111\u00e2y \u0111\u01b0\u1ee3c quan s\u00e1t: Blue-\u0111\u1ed3ng, Green-S\u1eaft (II), v\u00e0ng \/ n\u00e2u s\u1eaft (III). K\u1ebdm v\u00e0 ch\u00ec mu\u1ed1i h\u00f2a tan trong NaOH d\u01b0 th\u1eeba \u0111\u1ec3 cung c\u1ea5p cho m\u1ed9t gi\u1ea3i ph\u00e1p r\u00f5 r\u00e0ng c\u1ee7a Na2ZnO2 ho\u1eb7c Na2PbO2.<\/p>\n

Hydroxit nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t flocculant keo \u0111\u1ec3 l\u1ecdc ra c\u00e1c h\u1ea1t v\u1eadt ch\u1ea5t trong x\u1eed l\u00fd n\u01b0\u1edbc. Nh\u00f4m hydroxit \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb t\u1ea1i nh\u00e0 m\u00e1y x\u1eed l\u00fd t\u1eeb nh\u00f4m sunfat b\u1eb1ng ph\u1ea3n \u1ee9ng v\u1edbi natri hydroxit.<\/p>\n

Al2 (SO4) 3 + 6 NaOH \u2192 2 Al (OH) 3 + 3 Na2SO4<\/p>\n

<\/h3>\n

NaOH x\u00e0 ph\u00f2ng h\u00f3a<\/h3>\n

H\u00f3a ch\u1ea5t NaOH – Sodium hydroxide c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho qu\u00e1 tr\u00ecnh th\u1ee7y ph\u00e2n c\u01a1 s\u1edf \u0111\u1ecbnh h\u01b0\u1edbng c\u1ee7a c\u00e1c este (nh\u01b0 trong x\u00e0 ph\u00f2ng h\u00f3a), amit v\u00e0 alkyl halogenua. Tuy nhi\u00ean, \u0111\u1ed9 h\u00f2a tan h\u1ea1n ch\u1ebf natri hydroxit trong dung m\u00f4i h\u1eefu c\u01a1 c\u00f3 ngh\u0129a l\u00e0 hydroxit kali h\u00f2a tan (KOH) th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0a th\u00edch.<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc :\u00a0NaOH<\/strong><\/p>\n

T\u00ean h\u00f3a h\u1ecdc : Caustic soda; \u00a0Natri hi\u0111roxit ;\u00a0Sodium hydroxide; X\u00fat<\/strong><\/p>\n

Xu\u1ea5t x\u1ee9:\u00a0Vi\u1ec7t Nam, Trung Qu\u1ed1c,\u00a0Th\u00e1i Lan, \u0110\u00e0i Loan<\/strong><\/p>\n

N\u1ed3ng \u0111\u1ed9: 98 – 99%<\/strong><\/p>\n

D\u1ea1ng th\u00f9 h\u00ecnh: H\u1ea1t, v\u1ea9y ( Pearl; Flake)<\/strong><\/p>\n

Qui c\u00e1ch:\u00a025 kg\/bao<\/strong><\/p>\n","protected":false},"featured_media":1013,"comment_status":"open","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/product\/1012"}],"collection":[{"href":"https:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/comments?post=1012"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/media\/1013"}],"wp:attachment":[{"href":"https:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/media?parent=1012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}