Sunan samfur:Ethyl acetate

Tsarin kwayoyin halitta:Saukewa: C4H8O2

CAS No:141-78-6

Tsarin kwayoyin halitta:

Abubuwan Sinadarai:

Ethyl acetate (tsarin da aka nuna a sama) shine mafi yawan sanannun ester ga ɗaliban sunadarai da yawa kuma mai yiwuwa ester tare da mafi girman kewayon amfani.Esters an samo asali ne daga acid carboxylic ta maye gurbin hydrogen na acidic ta ƙungiyar alkyl ko aryl.Ethyl acetate kanta ruwa ne marar launi a cikin dakin da zafin jiki tare da kamshin "'ya'yan itace", bp 77 ° C.

Ethyl acetate yana da amfani da yawa, irin su jigon 'ya'yan itace na wucin gadi da masu haɓaka ƙamshi, dandano na wucin gadi don kayan abinci, ice cream da biredi, azaman sauran ƙarfi a aikace-aikace da yawa (ciki har da decaffeinating shayi da kofi) don fenti da fenti (mai cire ƙusa varnish), da kuma kera tawada da turare.

Aikace-aikace:

Ana amfani da Ethyl acetate da farko a matsayin mai narkewa da diluent, ana fifita shi saboda ƙarancin farashi, ƙarancin guba, da ƙanshi mai daɗi.Misali, ana amfani da shi don tsaftace allunan kewayawa da kuma a cikin wasu abubuwan cire ƙusa na ƙusa (ana amfani da acetone da acetonitrile).Ana rage waken kofi da ganyen shayi da wannan kaushi. Ana kuma amfani da shi a cikin fenti a matsayin mai kunnawa ko hardener.A cikin turare, yana fita da sauri, yana barin ƙamshin turare kawai a fata.
3 – 1 – Amfanin dakin gwaje-gwaje
A cikin dakin gwaje-gwaje, ana amfani da gaurayawan da ke ɗauke da ethyl acetate a cikin chromatography na shafi da kuma cirewa.Ethyl acetate yana da wuya a zaba a matsayin mai narkewa saboda yana da sauƙi ga hydrolysis da trans esterification.
3 – 2 – Faruwar giya
Ethyl acetate shine mafi yawan ester a cikin ruwan inabi, kasancewar samfurin mafi yawan kwayoyin halitta mai lalacewa - acetic acid, da kuma barasa na ethyl da aka haifar a lokacin fermentation.Ƙanshi na ethyl acetate ya fi haske a cikin ƙananan giya kuma yana ba da gudummawa ga fahimtar fahimtar "'ya'yan itace" a cikin ruwan inabi.
3 – 3 – Wakilin kashe kwayoyin halitta
A fagen ilimin ilimin halitta, ethyl acetate shine ingantaccen asphyxiant don amfani dashi wajen tattara kwari da nazari.A cikin kwalbar kisa da aka caje da ethyl acetate, tururi zai kashe kwari da aka tattara (yawanci manya) da sauri ba tare da lalata shi ba.Saboda ba hygroscopic ba ne, ethyl acetate kuma yana kiyaye kwari da taushi sosai don ba da izinin hawan da ya dace da tarin.