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{"id":727,"date":"2016-09-23T10:22:29","date_gmt":"2016-09-23T10:22:29","guid":{"rendered":"http:\/\/vuhoangco.com.vn\/en\/?post_type=product&p=727"},"modified":"2016-09-24T02:37:35","modified_gmt":"2016-09-24T02:37:35","slug":"dinatri-photphat-na2hpo4-12h2o-98","status":"publish","type":"product","link":"http:\/\/vuhoangco.com.vn\/en\/product\/dinatri-photphat-na2hpo4-12h2o-98\/","title":{"rendered":"Dinatri photphat – Na2HPO4.12H2O 98%"},"content":{"rendered":"

T\u00ednh ch\u1ea5t v\u1eadt l\u00fd: <\/strong><\/em>N\u00f3 l\u00e0 b\u1ed9t tr\u1eafng c\u00f3 t\u00ednh h\u00fat \u1ea9m cao v\u00e0 tan \u0111\u01b0\u1ee3c trong n\u01b0\u1edbc.V\u00ec th\u1ebf n\u00f3 \u0111\u01b0\u1ee3c d\u00f9ng trong th\u01b0\u01a1ng m\u1ea1i nh\u01b0 m\u1ed9t ph\u1ee5 gia ch\u1ed1ng \u0111\u00f4ng c\u1ee5c trong c\u00e1c s\u1ea3n ph\u1ea9m b\u1ed9t. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y v\u1ec1 m\u1eb7t th\u01b0\u01a1ng m\u1ea1i \u1edf c\u1ea3 d\u1ea1ng khan v\u00e0 hi\u0111rat ho\u00e1.<\/p>\n

T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc:\u00a0<\/em><\/strong><\/p>\n

\u0110\u1ed9 pH c\u1ee7a HPO4<\/sub>2\u2212<\/sup>\u00a0trong n\u01b0\u1edbc\u00a0l\u00e0 gi\u1eefa 8.0 v\u00e0 11.0, c\u00f3 ngh\u0129a lu\u00f4n c\u00f3 ph\u1ea3n \u1ee9ng thu\u1eadn ngh\u1ecbch x\u1ea3y ra:<\/p>\n

HPO4<\/sub>2\u2212<\/sup> + H2<\/sub>O \u21cc H2<\/sub>PO4<\/sub>\u2212<\/sup> + OH\u2212<\/sup><\/p>\n

Dinatri photphat \u00a0\u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng ph\u1ea3n \u1ee9ng trung h\u00f2a gi\u1eefa axit phosphoric v\u00e0 NaOH:<\/p>\n

H3<\/sub>PO4<\/sub> + 2 NaOH \u2192 HNa2<\/sub>PO4<\/sub> + 2 H2<\/sub>O<\/p>\n

Trong c\u00f4ng nghi\u1ec7p Na2HPO4 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng quy tr\u00ecnh 2 b\u01b0\u1edbc b\u1eb1ng c\u00e1ch cho\u00a0dicalcium phosphate ph\u1ea3n \u1ee9ng v\u1edbi\u00a0sodium bisulfate, t\u1ea1o ra k\u1ebft t\u1ee7a\u00a0calcium sulfate:<\/p>\n

\n
CaHPO4<\/sub> + NaHSO4<\/sub> \u2192 NaH2<\/sub>PO4<\/sub> + CaSO4<\/sub><\/dd>\n<\/dl>\n

Trong b\u01b0\u1edbc th\u1ee9 2, dung d\u1ecbch\u00a0monosodium phosphate \u0111\u01b0\u1ee3c trung h\u00f2a t\u1eebng ph\u1ea7n \u0111\u1ec3 t\u1ea1o ra\u00a0Na2<\/sub>HPO4<\/sub><\/p>\n

\n
NaH2<\/sub>PO4<\/sub> + NaOH \u2192 HNa2<\/sub>PO4<\/sub> + H2<\/sub>O<\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"

C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc :\u00a0Na2HPO4.12H2O<\/strong><\/p>\n

T\u00ean h\u00f3a h\u1ecdc : Sodium hydrogen phosphate, Disodium hydrogen orthophosphate, phosphate dibasic, disodium phosphate<\/strong><\/p>\n

Xu\u1ea5t x\u1ee9: Trung Qu\u1ed1c<\/b><\/p>\n

Qui c\u00e1ch :\u00a025 kg\/ bao<\/strong><\/p>\n","protected":false},"featured_media":729,"comment_status":"open","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"http:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/product\/727"}],"collection":[{"href":"http:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"http:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"http:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/comments?post=727"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/media\/729"}],"wp:attachment":[{"href":"http:\/\/vuhoangco.com.vn\/en\/wp-json\/wp\/v2\/media?parent=727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}