Jun 03, 2020

Cov tshuaj tiv thaiv Ethyl Acetate

Tso lus

Ethyl acetate yog yooj yim hydrolyzed. Thaum dej muaj nyob rau hauv chav tsev kub, nws maj mam hydrolyzes los ua acetic acid thiab ethanol. Ntxiv ib qhov cim tseg ntawm cov kua qaub lossis alkali tuaj yeem txhawb nqa cov tshuaj tiv thaiv hydrolysis. Ethyl acetate kuj tseem tuaj yeem dhau los ntawm cov tshuaj tiv thaiv dav dav xws li alcoholysis, aminolysis, kev hloov chaw thiab txo qis. Nyob rau hauv muaj cov sodium hlau, nws yws nws tus kheej los ua 3-hydroxy-2-butanone lossis ethyl acetoacetate; nws reacts nrog Grignard reagent los ua ib ketone, uas yog ntxiv reacted kom tau txais cawv haus cawv haus kom sov. Ethyl acetate yog qhov ruaj khov rau qhov cua sov, cua sov ntawm 290 ℃ rau 8 txog 10 teev yam tsis hloov. Nws decomposes rau hauv ethylene thiab acetic acid thaum dhau los ntawm cov hlau kub liab hlau, thiab decomposes rau hauv hydrogen, carbon monoxide, carbon dioxide, acetone thiab ethylene los ntawm zinc hmoov rhuab mus rau 300 ~ 350 ℃, thiab tuaj yeem decomposed rau hauv dej, ethylene thiab carbon Cov pa roj carbon dioxide los ntawm lub cev qhuav dej ntawm alumina ntawm 360 ℃ Thiab acetone.

Ethyl acetate yog decomposed los ntawm ultraviolet hluav taws xob los tsim cov pa roj carbon monoxide 55%, 14% carbon dioxide thiab 31% hydrogen lossis methane thiab lwm cov pa roj. Cov tshuaj tiv thaiv nrog ozone tsim cov acetaldehyde thiab acetic acid. Lub zog ua kom cov pa halide muaj feem nrog ethyl acetate los tsim cov halogenated ethane thiab acetic acid. Ntawm lawv, hydrogen iodide yog cov tshuaj tiv thaiv tshaj plaws. Hydrogen chloride xav tau cov pa hluav taws xob los ua kom lub siab sov ntawm chav sov. Nws yog rhuab mus rau 150 ° C nrog phosphorus pentachloride los tsim cov ethyl chloride thiab acetyl chloride. Ethyl acetate thiab cov ntsev ua kua hlau ua rau ntau yam khoom siv crystalline. Cov txheej txheem no yog soluble hauv ethanol tsis meej tab sis insoluble hauv ethyl acetate, thiab yog yooj yim hydrolyzed hauv dej.


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