Okumsulwai-glacial acetic acid, okungukuthi, i-anhydrous acetic acid, i-acetic acid ingenye yezinto ezibalulekile ze-organic acid, izinhlanganisela eziphilayo. Iqina ibe yiqhwa emazingeni okushisa aphansi futhi ivame ukubizwai-glacial acetic acid. Indawo yokuqandisa ingu-16.6° C (62° F), futhi ngemva kokuqina, iba yikristalu engenambala. Isixazululo saso esine-aqueous sine-asidi ebuthakathaka futhi siyagqwala kakhulu, futhi sigqwala kakhulu ezinsimbi. Isitimu sinomphumela ocasulayo emehlweni nasemakhaleni. Ngakho-ke, yiziphi izici ezisetshenziswayo i-glacial acetic acidezimbonini ezahlukene?
Okokuqala, ukusetshenziswa kwemboni ye-glacial acetic acid
1. Isetshenziselwa odayi bokwenziwa noyinki.
2. Embonini yokudla, isetshenziswa njengesilawuli se-acidity, i-acidifier, i-ejenti yokukhetha, i-flavour enhancer, izinongo nokunye. Futhi iyi-ejenti elwa namagciwane enhle, ikakhulukazi ngenxa yekhono layo lokunciphisa i-pH ngaphansi kwe-pH edingekayo ukuze kukhule kahle amagciwane.
3. Isetshenziswa embonini yenjoloba nepulasitiki. Isetshenziswa njenge-solvent kanye nezinto zokuqala kuma-polymers amaningi abalulekile (njenge-PVA, i-PET, njll.) embonini yenjoloba nepulasitiki.
4. Isetshenziswa njengesiqalo sopende kanye nezithako zokunamathela.
5. I-glacial acetic acid futhi idlala indima ebaluleke kakhulu ekuwasheni, ikakhulukazi ekuvimbeleni ukulahleka kombala ezingutsheni, inokususwa okuqinile kwamabala, futhi inganciphisa i-pH,i-glacial acetic acid idume kakhulu elondolo. Lapho usebenzisa, idinga ukusetshenziswa ngokuvumelana neziyalezo ezithile, futhi ayikwazi ukusebenzisa ngobumpumputhei-glacial acetic acid.
Okwesibili,i-glacial acetic acid ukusetshenziswa kwamakhemikhali
1. Okokwenziwa kwe-cellulose acetate. I-Cellulose acetate isetshenziselwa ifilimu yezithombe nezindwangu. Ngaphambi kokusungulwa kwefilimu ye-cellulose acetate, ifilimu yezithombe yayivame ukwenziwa ngama-nitrate futhi kwakukhona ukukhathazeka okuningi kokuphepha.
2. Isetshenziswa njenge-solvent yokuhlanganiswa kwe-terephthalic acid. I-P-xylene i-oxidized ibe i-terephthalic acid. I-Terephthalic acid isetshenziswa ekuhlanganiseni i-PET futhi isetshenziswa kabanzi ekwenzeni amabhodlela epulasitiki.
3. Kusetshenziswa kakhulu ukuhlanganiswa kwama-ester ngokusabela ngotshwala obuhlukahlukene. I-acetate derivatives isetshenziswa kabanzi njengezithasiselo zokudla.
4. Isetshenziselwa ukuhlanganiswa kwe-vinyl acetate monomer. I-monomer ingabese yenziwa i-polymerized ukuze yakhe i-poly (vinyl acetate), eyaziwa nangokuthi i-PVA.
5. Isetshenziswa njenge-solvent ekuphenduleni okuningi kwe-organic catalytic.
6. Isetshenziswa njengesikali nesikhiphi sokugqwala. Ninii-acetic acidiphendulana namanzi, amahewu esikali namabhamuza ayanyamalala, awahlephule asuka kokuqinile abe uketshezi olungasuswa kalula.
Isikhathi sokuthumela: May-30-2024