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Igama lomkhiqizo:I-Ethyl Acetate

Ifomethi Molecular:C4h8o2

I-CO CHA:141-78-6

Isakhiwo samangqamuzana somkhiqizo:

Izakhiwo Zamakhemikhali:

I-Ethyl Acetate (Isakhiwo esikhonjiswe ngenhla) yi-Eder ejwayele kakhulu kubafundi abaningi zamakhemikhali futhi mhlawumbe i-Ester nohlu olubanzi kakhulu lokusetshenziswa. Ama-Esters atholakala ngokuhlelekile kuma-carboxylic acid ngokufaka esikhundleni se-acidic hydrogen yi-ALKYL noma i-Aryl Group. I-Ethyl Acetate ngokwayo iwuketshezi olungenamibala emazingeni okushisa asekamelweni anephunga elimnandi "ruity", bp 77 ° C.

I-Ethyl Acetate isebenzisa okuningi, njengezithelo zezithelo ezifana nama-aroma, ama-flavour okufakelwa ku-confectionery, i-ayisikhilimu namakhekhe, kufaka phakathi i-slowlent ku-varnish kanye pakes (i-nail varnish remover), futhi ukwenziwa kwama-inks okunyathelisa namakha.

Isicelo:

I-Acetate ye-ETYL isetshenziswa ngokuyinhloko njenge-solvent kanye ne-dilluent, ethandwa ngenxa yezindleko zayo eziphansi, ubuthi obuphansi nephunga elivumayo. Isibonelo, kuvame ukusetshenziselwa ukuhlanza amabhodi wesifunda futhi kwezinye izipikili ezisusa izipikili (i-acetone ne-acetonitritle nazo zisetshenziswa). Ubhontshisi wekhofi kanye namaqabunga etiye anamaqabunga afakiwe ngale solvent.it nawo asetshenziswa kumapende njengesishoshovu noma i-hartiner. Kumakha amakha, kuyaphuma ngokushesha, kushiya iphunga lamakha esikhunjeni.
3 - 1 - Ukusetshenziswa Kwelabhoratri
Elebhu, ukuhlanganiswa okuqukethe i-ethyl acetate kuvame ukusetshenziswa kwikholamu i-chromatography kanye nokukhishwa. I-Ethyl Acetate ayivamile ikhethwa njenge-solvent yokusabela ngoba ithambekele ku-hydrolysis kanye ne-trans desterication.
I-3 - 2 - isenzakalo ewayini
I-Ethyl Acetate yi-Ester evame kakhulu ewayinini, engumkhiqizo we-organic acid evame kakhulu - i-acetic acid, kanye notshwala be-ethyl elenziwe ngesikhathi sokuvutshelwa. Iphunga le-ethyl acetate licacile kakhulu ewanini lezingane futhi linomthelela ekuboneni okujwayelekile kokuthi "izithelo" ewayinini.
3 - 3 - Umenzeli wokubulala okubonakalayo
Emkhakheni we-Entomology, i-Ethyl Acetate iyi-askyciant ephumelelayo yokusetshenziswa ekuqoqweni kwezinambuzane nokutadisha. Embizeni ebulalayo ekhokhiswa i-ethyl acetate, ama-vapors azobulala abaqoqiwe (imvamisa) izinambuzane ngokushesha ngaphandle kokuzicekela phansi. Ngoba akulona i-hygroscopic, i-ethyl acetate ibuye iqhubeke nezinambuzane ithathe ngokwanele ukuvumela ukufakwa okufanele kufanelekile iqoqo.