Igama Lomkhiqizo:i-acetic acid

Ifomethi ye-Molecular:I-C2H4O2

Inombolo ye-CAS:64-19-7

Isakhiwo samangqamuzana omkhiqizo:

Ukucaciswa:

Chemical Properties:

I-acetic acid, i-CH3COOH, iwuketshezi olungenambala, oluguquguqukayo emazingeni okushisa asendaweni.Inhlanganisela emsulwa, i-glacial acetic acid, iqanjwe igama layo ngenxa yokubukeka kwayo okucwebezelayo okunjengeqhwa ku-15.6°C.Njengoba kunikezwa ngokuvamile, i-acetic acid iyisisombululo esinamanzi esingu-6 N (cishe ama-36%) noma isixazululo esingu-1 N (cishe u-6%).Lokhu noma okunye ukuhlanjululwa kusetshenziselwa ukwengeza amanani afanele e-acetic acid ekudleni.I-Acetic acid iyisici se-asidi yeviniga, ukugxila kwayo kusuka ku-3.5 kuya ku-5.6%.I-acetic acid nama-acetate akhona ezitshalweni eziningi nezicubu zezilwane ngamanani amancane kodwa abonakalayo.Ziyizinto ezijwayelekile zokuxhumanisa i-metabolic, zikhiqizwa yizinhlobo zebhaktheriya njenge-Acetobacter futhi zingahlanganiswa ngokuphelele ku-carbon dioxide ngamagciwane anjengeClostridium thermoaceticum.Igundane lakha i-acetate ngesilinganiso esingu-1% wesisindo somzimba walo ngosuku.

Njengoketshezi olungenambala olunephunga elinamandla, elihlabayo, elinoviniga, liwusizo kubhotela, ushizi, ukunambitheka kwamagilebhisi nezithelo.I-acetic acid emsulwa encane kakhulu njengoba enjalo isetshenziswa ekudleni, nakuba ihlukaniswa yi-FDA njengento ye-GRAS.Ngenxa yalokho, ingase isetshenziswe emikhiqizweni engakhaviwe Izincazelo Namazinga Obunikazi.I-acetic acid iyingxenye eyinhloko yamaviniga ne-pyroligneous acid.Ngendlela yeviniga, ngaphezu kwezigidi ezingama-27 lb zengezwa ekudleni ngo-1986, ngamanani alinganayo asetshenziswa njengama-acidulants nama-flavoring agents.Eqinisweni, i-acetic acid (njengeviniga) yayingenye yezinto zokuqala zokunambitha.Uviniga usetshenziswa kakhulu ekulungiseni isaladi yokugqoka kanye nemayonnaise, amakhukhamba amuncu namnandi namasoso amaningi nama-catsups.Zibuye zisetshenziswe ekwelapheni inyama nasekufakweni kwemifino ethile.Ekwenzeni imayonnaise, ukwengezwa kwengxenye ye-acetic acid (uviniga) kusawoti- noma ushukela-isikhupha kunciphisa ukumelana nokushisa kweSalmonella.Izingoma ezibopha amanzi zamasoseji ngokuvamile zihlanganisa i-acetic acid noma usawoti wayo we-sodium, kuyilapho i-calcium acetate isetshenziselwa ukulondoloza ukuthungwa kwemifino ekheniwe.

Isicelo:

1.Isetshenziswa ekuhlanganiseni odayi noyinki.

2. Isetshenziswa ekuhlanganiseni amakha.

3. Isetshenziswa embonini yenjoloba neyepulasitiki.Isetshenziswa njenge-solvent kanye nezinto zokuqala kuma-polymers amaningi abalulekile (njenge-PVA, i-PET, njll.) ezimbonini zenjoloba nezepulasitiki.

4. Isetshenziswa njengesiqalo sopende kanye nezingxenye zokunamathela

5. Isetshenziswa embonini yokucubungula ukudla njengesengezo kushizi namasoso nanjengesilondolozi sokudla.