Nkọwa

▶Sodium acetate (CH3COONa) bụ nnu sodium nke acetic acid.Ọ na-apụta dị ka nnu na-enweghị agba nke nwere ọtụtụ ngwa.N'ime ụlọ ọrụ, enwere ike iji ya na ụlọ ọrụ akwa iji wepụ mmiri mkpofu sulfuric acid yana dị ka onye na-ese foto mgbe ị na-eji akwa aniline.N'ụlọ ọrụ ihe na-emepụta ihe, enwere ike iji ya dị ka ihe mkpuchi ihe iji belata mmebi mmiri.Na nri, enwere ike iji ya mee ihe na-esi ísì ụtọ.Enwere ike iji ya dị ka ihe ngwọta na ụlọ nyocha.Tụkwasị na nke ahụ, a na-ejikwa ya na ihe mkpuchi ọkụ, ihe ọkụ aka na ice na-ekpo ọkụ.Maka iji ụlọ nyocha, enwere ike imepụta ya site na mmeghachi omume n'etiti acetate na sodium carbonate, sodium bicarbonate na sodium hydroxide.Na ụlọ ọrụ, a na-akwado ya site na glacial acetic acid na sodium hydroxide.

▶ Njirimara kemịkalụ

Nnu anhydrous bụ kristal siri ike na-enweghị agba;njupụta 1.528 g / cm3;na-agbaze na 324 ° C;soluble nke ukwuu na mmiri;soluble nke ọma na ethanol.Trihydrate crystalline na-enweghị agba nwere njupụta 1.45 g / cm3;ire ere na 58 ° C;dị nnọọ soluble na mmiri;pH nke ngwọta mmiri 0.1M bụ 8.9;soluble nke ọma na ethanol, 5.3 g / 100ml.

▶ Nchekwa na Ụgbọ njem

Ekwesịrị ịchekwa ya n'ụlọ nkwakọba ihe na-ekpo ọkụ na nke ikuku, na-echekwa ya na okpomọkụ na mmiri n'oge njem, na-ebufe ya na nlezianya ka ọ ghara imebi.Ọzọkwa, a ghaghị ịchekwa ya iche na ihe ndị na-egbu egbu.

Ngwa

▶ Ụlọ ọrụ mmepụta ihe
A na-eji sodium acetate eme ihe na ụlọ ọrụ textile iji wepụ mmiri mkpofu sulfuric acid nakwa dị ka onye na-ese foto mgbe ị na-eji akwa aniline.Ọ bụkwa ihe na-emepụta ihe na chrome tanning ma na-enyere aka igbochi vulcanization nke chloroprene na mmepụta rọba sịntetik.N'ime nhazi owu maka ihe mkpuchi owu nwere ike ịwụfu, a na-eji sodium acetate wepụ ọkụ eletrik.A na-ejikwa ya dị ka "ọkụ-ice" na aka ọkụ.

▶Concrete ogologo ndụ
A na-eji sodium acetate belata mmebi mmiri n'ime ihe site na ime ihe dị ka ihe mkpuchi ihe, ebe ọ bụkwa na gburugburu ebe obibi dị mma ma dị ọnụ ala karịa ihe ọzọ epoxy ọzọ a na-ejikarị eme ihe maka ịchichi ihe mgbochi megide mmiri.
▶ Ngwọta nchekwa
Dị ka ntọala conjugate nke acetic acid, ngwọta nke sodium acetate na acetic acid nwere ike ime dị ka ihe nchekwa iji nọgide na-enwe ọkwa pH dịtụ ala.Nke a bara uru karịsịa na ngwa biochemical ebe mmeghachi omume na-adabere na pH na oke acidic dị nro (pH 4-6).A na-ejikwa ya na ndị na-ekpo ọkụ ọkụ ma ọ bụ ndị na-ekpo ọkụ aka ma na-ejikwa ice ọkụ na-ekpo ọkụ.Mgbe a na-ekpo ọkụ na ihe dị ka 100 Celsius C, ma emesịa hapụ ya ka ọ dị jụụ, ngwọta mmiri na-aghọ nke ukwuu.Ihe ngwọta a nwere ike ime ka ọ dị jụụ ruo n'ime ụlọ na-enweghị ịmepụta kristal.Site na ịpị diski ígwè dị na pad kpo oku, a na-emepụta ebe nucleation center nke na-eme ka ngwọta ahụ ghọọ crystallize n'ime kristal trihydrate siri ike ọzọ.Usoro nhazi nke njikọ nke crystallization bụ exothermic, ya mere okpomọkụ na-apụta.Okpomọkụ dị nro nke ngwakọta bụ ihe dịka 264-289 kJ / kg.