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:
Ukusetshenziswa kwe-acetic acid embonini

1. Isetshenziswa ekuhlanganiseni odayi noyinki.

2. Isetshenziswa ekuhlanganiseni amakha.

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

4. Isetshenziswa njengesiqalo sopende kanye nezingxenye zokunamathela

5. Isetshenziswa embonini yokucubungula ukudla njengesengezo kushizi namasoso nanjengesigcina ukudla.

Ukusetshenziswa kwe-acetic acid ekuhlanganiseni kwamakhemikhali

1.Isetshenziswa ekuhlanganiseni i-cellulose acetate. I-Cellulose acetate isetshenziswa kumafilimu ezithombe nezindwangu. Ngaphambi kokusungulwa kwefilimu ye-cellulose acetate, ifilimu yezithombe yayivame ukwenziwa nge-nitrate, eyayinezinkinga eziningi zokuphepha.

2. Isetshenziswa njenge-solvent yokuhlanganiswa kwe-terephthalic acid. I-Paraxylene i-oxidized ibe i-terephthalic acid. I-Terephthalic acid isetshenziselwa ukwenza i-PET, esetshenziswa kakhulu ukwenza amabhodlela epulasitiki.

3. Kusetshenziswa kakhulu ekuphenduleni ngotshwala obuhlukahlukene ukuze kuhlanganiswe ama-ester. I-acetate derivatives isetshenziswa kabanzi njengezithasiselo zokudla.

4. Isetshenziswe ekuhlanganiseni i-vinyl acetate monomer. I-monomer ingabese yenziwa i-polymerized ukuze yakhe i-poly(vinyl acetate) eyaziwa nangokuthi i-PVA. I-pVA inohlu olubanzi lwezinhlelo zokusebenza ezisuka kwezokwelapha (ngenxa yokuvumelana kwayo kwezinto eziphilayo ne-nanotechnology (njenge-stabilizer) kuya ekwenzeni iphepha).

5. Isetshenziswa njenge-solvent ekuphenduleni okuningi kwe-organocatalytic.

Ukusetshenziswa kwe-acetic acid kwezokwelapha

1. I-acetic acid isetshenziswa endleleni ebizwa ngokuthi i-pigmented endoscopy, okungenye ye-endoscopy evamile.

2. I-acetic acid isetshenziselwa ukuhlola okubonwayo komdlavuza womlomo wesibeletho kanye nezilonda. Ibuye isetshenziselwe ukuhlola umdlavuza womlomo wesibeletho.

3. I-acetic acid isetshenziselwa ukwelapha i-otitis yangaphandle.

4. I-acetic acid ngezinye izikhathi isetshenziselwa ukwelapha izifo ezibangelwa amagciwane kanye nesikhunta.

5. Ekuhlolweni kwaselabhorethri kumagundane, i-acetic acid iboniswe ukunciphisa impendulo yokuvuvukala kumagundane.

Ukusetshenziswa kwe-acetic acid ekhaya

1. I-acetic acid iyingxenye eyinhloko kaviniga.

2. Uviniga usetshenziselwa ukukha imifino

3. Isetshenziselwa ukugqoka isaladi

4. Isetshenziselwa inqubo yokubhaka. Ihlangana ne-baking soda ukuze ikhiphe igesi ye-carbon dioxide ukwenza ukudla kufiphaze.

5.Isetshenziswa njenge-ejenti ye-antifungal.