I-acetic acid
Imininingwane Yomkhiqizo
Imininingwane enikeziwe
Impushana emhlopheOkuqukethwe ≥ 99%
Uketshezi olusobalaOkuqukethwe ≥ 45%
(Ububanzi bereferensi yesicelo 'ukusetshenziswa komkhiqizo')
Ukwakheka kwekristalu ye-acetic acid kukhombisa ukuthi ama-molecule ahlanganiswe abe ama-dimers (owaziwa nangokuthi ama-dimers) ngamabhondi e-hydrogen, futhi ama-dimers akhona esimweni somhwamuko ongu-120 ° C. Ama-Dimers anokuqina okuphezulu, futhi kufakazelwe ukuthi i-carboxylic ama-asidi anesisindo esiphansi samangqamuzana afana ne-formic acid ne-acetic acid akhona ngendlela yama-dimers esimweni esiqinile, esiwuketshezi noma ngisho negesi ngokusebenzisa indlela yokunquma isisindo samangqamuzana ngokuncishiswa kwephuzu eliqandayo kanye nokuhlukaniswa kwe-X-ray.Lapho i-acetic acid ichithwa ngamanzi, izibopho ze-hydrogen phakathi kwama-dimers ziphuka ngokushesha.Amanye ama-carboxylic acid akhombisa ukuncipha okufanayo.
I-EVERBRIGHT® 'izophinda ihlinzeke ngendlela oyifisayo :okuqukethwe/ubumhlophe/usayizi wezinhlayiya/PHvalue/umbala/isitayela sokupakisha/ ukucaciswa kwephakheji neminye imikhiqizo eqondene nezimo zakho zokusebenzisa, futhi ikunikeze amasampula amahhala.
Ipharamitha Yomkhiqizo
64-19-7
231-791-2
60.052
I-Organic acid
1.05 g/cm³
Incibilika emanzini
117.9 ℃
16.6°C
Ukusetshenziswa komkhiqizo
Ukusetshenziswa kwezimboni
1. I-acetic acid ingumkhiqizo wamakhemikhali omningi, ingenye yama-asidi e-organic abaluleke kakhulu.Isetshenziselwa ikakhulukazi ukukhiqizwa kwe-acetic anhydride, i-acetate ne-cellulose acetate.I-Polyvinyl acetate ingenziwa ibe amafilimu nezinamatheliso, futhi iyimpahla eluhlaza ye-synthetic fiber Vinylon.I-Cellulose acetate isetshenziselwa ukwenza i-rayon nefilimu yesithombe esinyakazayo.
2. i-acetic ester eyakhiwe ngotshwala obuphansi iyi-solvent enhle kakhulu, esetshenziswa kabanzi embonini kapende.Ngenxa yokuthi i-acetic acid incibilikisa izinto eziningi eziphilayo, ibuye isetshenziswe ngokujwayelekile njengesixazululi semvelo (isb. ukufakwa kwe-p-xylene ukukhiqiza i-terephthalic acid).
3. I-acetic acid ingasetshenziswa kwezinye izixazululo zokukhetha nokupholisha, kusixazululo esine-asidi ebuthakathaka njengesigcinalwazi (njenge-galvanized, electroless nickel plating), ku-nickel ekhanya kancane ecwebezela i-electrolyte njengesithako, kusixazululo se-passivation se-zinc. , i-cadmium ingathuthukisa amandla okubopha wefilimu ye-passivation, futhi evame ukusetshenziselwa ukulungisa i-pH yokugeza ene-asidi ebuthakathaka.
4. ukukhiqizwa kwe-acetate, efana ne-manganese, i-sodium, i-lead, i-aluminium, i-zinc, i-cobalt namanye ama-salts ensimbi, asetshenziswa kakhulu njengezisusa, ukudaya kwendwangu kanye nezithasiselo zemboni yokushukwa kwesikhumba;I-acetate yomthofu ingumbala wopende omhlophe oholayo;I-lead tetraacetate i-organic synthesis reagent (isibonelo, i-lead tetraacetate ingasetshenziswa njenge-oxidizing ejenti eqinile, inikeze umthombo we-acetoxy futhi ilungiselele izinhlanganisela zokuhola eziphilayo, njll.).
5. I-acetic acid ingasetshenziswa futhi njenge-reagent yokuhlaziya, i-organic synthesis, i-pigment kanye nokuhlanganiswa kwezidakamizwa.
Ukusetshenziswa kokudla
Embonini yokudla, i-acetic acid isetshenziswa njenge-acidifier, i-ejenti yokunambitha kanye nephunga lapho kwenziwa uviniga wokwenziwa, i-acetic acid ihlanjululwe ku-4-5% ngamanzi, futhi kunezelwa ama-flavour agents ahlukahlukene.I-flavour ifana neyeviniga yotshwala, futhi isikhathi sokukhiqiza sifushane futhi intengo ishibhile.Njenge-ejenti emuncu, ingasetshenziselwa i-compound seasoning, ukulungiswa kweviniga, ekheniwe, i-jelly kanye noshizi, ngokusho kwezidingo zokukhiqiza zokusetshenziswa okufanele.Ingase futhi ihlanganise isithuthukisi sephunga lewayini lempepho, inani lokusetshenziswa ngu-0.1 ~ 0.3 g/kg.
