Tsanangudzo

▶Sodium acetate (CH3COONA) ndiyo sodium munyu weacetic acid.Inoratidzika semunyu usina ruvara wemunyu une huwandu hwakawanda hwekushandisa.Muindasitiri, inogona kushandiswa muindasitiri yemachira kudzikamisa sulfuric acid tsvina hova uye sephotoresist pakushandisa aniline dhayi.Muindasitiri yekongiri, inogona kushandiswa sekongiri sealant kuderedza kukuvadzwa kwemvura.Muchikafu, inogona kushandiswa semushonga.Inogona zvakare kushandiswa senge buffer mhinduro mulabhu.Mukuwedzera, inoshandiswawo mukupisa mapedhi, mawoko anodziya uye ice rinopisa.Kuti ishandiswe murabhoritari, inogona kugadzirwa nekuita pakati peacetate ine sodium carbonate, sodium bicarbonate uye sodium hydroxide.Muindasitiri, inogadzirwa kubva kune glacial acetic acid uye sodium hydroxide.

▶Chemical Properties

Anhydrous salt is a colorless crystalline solid;density 1.528 g/cm3;inonyunguduka pa 324 ° C;yakanyanya soluble mumvura;ine mwero soluble mu ethanol.The colorless crystalline trihydrate ine density 1.45 g/cm3;inoora pa58 ° C;inonyungudika zvakanyanya mumvura;pH ye 0.1M aqueous solution ndeye 8.9;ine mwero soluble mu ethanol, 5.3 g/100mL.

▶Kuchengeta uye Kutakura

Inofanira kuchengetwa munzvimbo yakaoma uye inopinza mhepo, inochengeterwa kure nekupisa uye unyoro panguva yekufambisa, inobudiswa nekuchenjerera kuitira kuti irege kukuvara.Uyezve, inofanira kuchengetwa yakaparadzana nezvinhu zvine chepfu.

Application

▶Maindasitiri
Sodium acetate inoshandiswa muindasitiri yemachira kumisa sulfuric acid tsvina hova uye zvakare sephotoresist uchishandisa aniline dhayi.Iyo zvakare inonhonga mumiriri mu chrome tanning uye inobatsira kukanganisa vulcanization ye chloroprene mukugadzirwa kwerabha.Mukugadzirisa donje remapedhi edonje anoraswa, sodium acetate inoshandiswa kubvisa kuvakwa kwemagetsi akamira.Inoshandiswawo se "hot-ice" muchidziya chemaoko.

▶Kurarama kwenguva refu
Sodium acetate inoshandiswa kudzikamisa kukuvadzwa kwemvura kukongiri nekuita sekongiri sealant, ukuwo iine hutsinye kwezvakatipoteredza uye yakachipa pane inowanzo shandiswa epoxy imwe nzira yekuisa chisimbiso kongiri pakupinda kwemvura.
▶Buffer solution
Seyo conjugate base yeacetic acid, mhinduro ye sodium acetate uye acetic acid inogona kuita sebhafa kuti ichengetedze inogara pH level.Izvi zvinobatsira kunyanya mukushandiswa kwebiochemical apo maitiro ari pH-anotsamira mune zvinyoro acidic renji (pH 4-6).Inoshandiswawo muvatengi HEATING PADS kana maoko anodziya uye inoshandiswawo muchando chinopisa.Sodium acetate trihydrate crystals inonyunguduka pa 58 ° C, ichinyunguduka mumvura yavo yekristallilization.Kana yadziyirwa kusvika ku100 ° C, uye yozotenderwa kutonhora, iyo aqueous solution inova supersaturated.Iyi mhinduro inokwanisa kutonhora zvakanyanya kusvika kukamuri tembiricha pasina kugadzira makristasi.Nekudzvanya pane dhisiki resimbi mune yekudziya pad, nzvimbo ye nucleation inoumbwa iyo inoita kuti mhinduro ijekese kuita yakasimba trihydrate crystals zvakare.Iyo bond-forming process yecrystallization ndeye exothermic, saka kupisa kunoburitswa.Kupisa kwakadzikama kwekusanganiswa kunosvika 264–289 kJ/kg.