Glacial acetic acid yog ib qho tseem ceeb tshaj plaws kev lag luam organic acids vim nws siab purity, muaj zog solvency, ruaj khov tshuaj, thiab dav siv ntau yam nyob rau hauv chemical manufacturing, pharmaceuticals, zaub mov ua, textiles, thiab industrial synthesis.
Glacial Acetic Acid yog dab tsi?
Glacial acetic acid (GAA), tseem hu ua ethanoic acid, yog cov ntsiab lus ntawm acetic acid nrog rau qib purity feem ntau ncav cuag 99% -100%. Nws cov qauv tshuaj yog CH₃COOH, thiab nws zoo nkaus li cov kua ntshiab, tsis muaj xim nrog cov ntxhiab tsw muaj zog. Tsis zoo li cov kua txiv hmab txiv ntoo uas muaj 4-8% acetic acid, glacial acetic acid solidifies ntawm kwv yees li 16.6 degree, ua dej khov-zoo li crystals uas muab lub npe "glacial."
Vim nws cov ntsiab lus dej tsawg heev,glacial acetic acidmuab cov tshuaj reactivity ntau dua thiab txhim kho cov txheej txheem kev ruaj ntseg hauv kev lag luam. Nws qhov kub hnyiab yog kwv yees li 118 degree, thaum nws qhov dielectric tsis tu ncua ntawm ib ncig ntawm 6.2 ntawm 20℃tso cai rau kev ua haujlwm zoo ionic dissociation hauv chav kuaj thiab electrochemical systems.
Glacial Acetic Acid Ua li cas?
Kev tsim khoom ntawm glacial acetic acid (C2H4O2) feem ntau yog siv methanol carbonylation, qhov twg methanol reacts nrog carbon monoxide nyob rau hauv lub xub ntiag ntawm catalysts los tsim high -purity acetic acid. Txoj kev no yog tam sim no cov txheej txheem tsim khoom thoob ntiaj teb vim nws cov kev ua haujlwm siab thiab ua kom muaj zog.
Lwm txoj kev tsim khoom yog biological fermentation, uas zoo ib yam li cov kua txiv hmab txiv ntoo tab sis ua raws li kev ua kom huv thiab lub cev qhuav dej kom ua tiav nyob ze -anhydrous acetic acid concentration. Tom qab ntau lawm, kev lim dej ntxiv tshem tawm cov dej thiab cov impurities kom ua tiav glacial - qib purity siab dua 99%.
Raws li kev paub txog tshuaj lom neeg tsim khoom thiab xa tawm,TIANJIN GNEE BIOTECH CO., LTD.tsom rau kev ruaj ntseg zoo, kev tswj hwm kev tsim khoom, thiab kev ntim khoom thoob ntiaj teb los txhawb kev lag luam thoob ntiaj teb.
Cov khoom ntawm Glacial Acetic Acid
Ib qho tseem ceeb tshaj plaws ntawm glacial acetic acid yog nws cov purity siab thiab muaj zog acidic kev ua haujlwm. Piv nrog rau diluted acetic acid daws, nws muab:
- Cov tshuaj tiv thaiv zoo dua
- Tsawg impurity theem
- Txhim kho synthesis stability
- Txo cov dej purification yuav tsum tau txo qis
Nws tsis tshua muaj viscosity thiab dav electrochemical qhov rais, feem ntau yog li ntawm 1.5V txog 4V, kuj ua rau nws haum rau tshwj xeeb kev lag luam thiab electrolyte daim ntaub ntawv. Tsis tas li ntawd, glacial acetic acid tseem nyob ruaj khov nyob rau hauv cov xwm txheej tsis muaj dej, pab cov tuam txhab tswj xyuas cov khoom zoo sib xws thaum lub sijhawm ua lag luam.
Lub compound yog heev soluble nyob rau hauv dej, alcohols, thiab ntau organic solvents, ua rau nws dav siv tau rau industrial chemical systems thiab laboratory formulations.
Muaj kev siv ntawm Glacial Acetic Acid
Glacial acetic acid yog siv dav hauv kev tsim tshuaj raws li cov khoom siv raw rau acetate esters, acetic anhydride, thiab vinyl acetate monomer (VAM). Cov tshuaj no yog qhov tseem ceeb hauv kev tsim cov nplaum, txheej, inks, plastics, hluavtaws fibers, thiab cov khoom ntim. Ntiaj teb no acetic acid thov tau tshaj 16 lab tons ib xyoos twg, nrog rau kev noj tseem ceeb los ntawm polymer thiab PET yas manufacturing.
Hauv kev lag luam kws tshuaj,glacial acetic acidyog siv los ua cov kuab tshuaj thiab cov synthesis reagent rau tshuaj tua kab mob, tshuaj aspirin, thiab ntau yam tshuaj intermediates. High - qib purity yog qhov tseem ceeb tshwj xeeb hauv chav kuaj thiab kev kho mob cov txheej txheem uas tswj kev sib kis yog qhov tseem ceeb.
Kev lag luam zaub mov tseem cia siab rau diluted acetic acid tau los ntawm glacial acetic acid rau vinegar ntau lawm, preservation systems, sauces, thiab pickling daim ntaub ntawv. Nws cov khoom siv tshuaj tua kab mob pab txo cov kab mob loj hlob thiab txhim kho cov khoom noj khoom haus lub neej thaum lub sij hawm thauj mus los thiab khaws cia.
Hauv kev tsim textile, glacial acetic acid feem ntau yog siv rau dye fixation, pH hloov, thiab ntaub xov. Textile factories hauv Asia thiab lwm thaj chaw tsim khoom loj siv ntau ntau txhua xyoo los txhim kho xim ruaj khov thiab ntaub zoo.
Rau cov ncauj lus kom ntxaws daim ntawv thov ntawm glacial acetic acid, thov nyem qhov no.
Qhov zoo ntawm kev siv Glacial Acetic Acid
Ib qho txiaj ntsig tseem ceeb ntawm glacial acetic acid yog nws lub peev xwm los txhim kho cov txheej txheem kev lag luam vim nws cov ntsiab lus dej tsawg heev. Piv nrog rau cov kua qaub diluted, nws ua rau muaj kev tawm tsam tsawg dua thiab txhim kho tag nrho cov khoom sib xws.
Nws cov concentration siab kuj txo cov kev xav tau ua ntej - cov kauj ruam tseem ceeb, pab cov tuam txhab siv hluav taws xob qis, sijhawm ua haujlwm, thiab cov nqi ua haujlwm. Vim tias tsawg dua impurities tau qhia thaum lub sijhawm ua ke, cov kev cai hauv qab dej huv huv tau txo qis.
Lwm qhov txiaj ntsig tseem ceeb yog nws txoj kev ua tau zoo thoob plaws ntau qhov kev lag luam, suav nrog tshuaj lom neeg, tshuaj, khoom noj khoom haus, textiles, coatings, thiab kev siv tshuaj ntxuav. Qhov kev sib raug zoo dav no ua rau glacial acetic acid yog ib qho ntawm cov organic acids uas siv dav hauv ntiaj teb kev tsim khoom.
Glacial Acetic Acid Specification Table
| Yam khoom | Specification |
|---|---|
| Khoom npe | Glacial acetic acid |
| Tshuaj Formula | CH₃COOH |
| CAS Nr | 64-19-7 |
| Purity | Ntau dua lossis sib npaug li 99.5% (txog 99.9%) |
| Qhov tshwm sim | Colorless pob tshab kua |
| tsw | Muaj zog pungent vinegar-zoo li tsw |
| Cov ntsiab lus ntawm acetic acid | 99–100% |
| Txias Point | 16.6℃qhov siab |
| Boiling Point | 118 degree |
| Ceev (20 degree) | 1.049 g/cm³ |
| Cov ntsiab lus dej | Tsawg dua lossis sib npaug li 0.5% |
| Qib Options | Qib Industrial / Khoom noj khoom haus qib / Pharmaceutical qib |