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Khoom npe:Ethyl Acetate

Molecular hom:C4h8o2

Cas:141-78-6

Khoom molecular qauv:

Tshuaj Tshuaj Muaj Zog:

Ethyl acetate (qauv qhia saum toj no) yog cov neeg paub zoo tshaj plaws rau ntau tus tub ntxhais kawm chemistry thiab tej zaum tus Ester nrog lub dav dav ntawm kev siv. Esters yog cov qauv tsim los ntawm carboxylic acids los ntawm hloov cov acidic hydrogen los ntawm alkyl lossis aryl pab pawg. Ethyl acetate nws tus kheej yog cov kua tsis muaj xim nyob rau hauv chav tsev kub nrog qab ntxiag "tsw qab, bp 77 ° C.

Ethyl acetate muaj ntau cov siv, xws li cov txiv hmab txiv ntoo tsim tawm thiab cov tshuaj nplaum (suav nrog cov tshuaj vanish

Daim Ntawv Thov:

Ethyl acetate yog siv feem ntau raws li cov kuab tshuaj thiab dag, ua kom haum vim nws tus nqi qis, thiab pom tsis zoo. Piv txwv li, nws feem ntau yog siv los ntxuav cov laug cam thiab hauv qee cov leeg cov varnish tshem tawm (acetone thiab acetone thiab acetone thiab acetone thiab acetone thiab Acetonittrile kuj tau siv). Kas fes taum thiab cov tshuaj yej nplooj yog decaffeinated nrog cov kuab tshuaj no yog siv tau] ethyl acetate yog muaj nyob rau hauv confectiony, tshuaj tsw qab, thiab txiv hmab txiv ntoo. Hauv cov naj hoom, nws evaporates sai sai, tawm tsuas yog cov ntxhiab tsw ntawm cov naj hoom ntawm daim tawv nqaij.
3 - 1 - Kuaj siv
Hauv chav kuaj, cov tshuaj sib xyaw muaj cov ethyl acetate feem ntau siv hauv kem chromatography thiab ntau yam. Ethyl acetate yog tsis xaiv xaiv raws li cov tshuaj tiv thaiv kev tawm tsam vim tias nws yog ib qho mus rau hydrolysis thiab hloov pauv cov ntawv esterification.
3 - 2 - Muaj tshwm sim hauv Wines
Ethyl Acetate yog tus nquag tshaj plaws hauv caw, yog cov khoom lag luam cov organic acid, thiab cov tshuaj tua kab mob ethyl, thiab cov ethyl cawv tsim tawm thaum lub sij hawm fermentation. Lub aroma ntawm Ethyl acetate yog feem ntau yog cov ua cawv me me thiab pab txhawb rau kev xav ntawm "frominess" hauv cawv.
3 - 3 - Tus neeg sawv cev foromological
Nyob rau hauv teb ntawm entomology, ethyl acetate yog ib qho zoo assortiant rau kev siv hauv kab kev sib sau thiab kawm. Hauv kev tua lub thawv raug them nrog Ethyl acetate, lub vapors yuav tua tau cov neeg sau (feem ntau yog neeg laus) cov kab nrawm nrawm. Vim tias nws tsis yog hygroscopic, Ethyl acetate kuj ua rau cov kab muag txaus kom tso cai tsim nyog mounting kom haum rau kev sau.