Qhov sib txawv tseem ceeb ntawm glacial acetic acid thiab vinegar yog tias glacial acetic acid yog ib daim ntawv ntawm acetic acid, whereas vinegar yog ib tug tsawg concentrated daim ntawv ntawm acetic acid.
Acetic acid yog cov organic compound uas muaj cov tshuaj CH3COOH, thiab nws cov molar mass yog 60 g / mol. Lub npe IUPAC ntawm cov tshuaj no yog ethanoic acid. Nws tuaj nyob rau hauv txawv concentrations: tsawg concentrations thiab siab concentrations. Qhov txawv ntawm glacial acetic acid thiab vinegar nyob rau hauv lawv cov acetic acid concentration.
YGlacial Acetic Acid yog dab tsi?
Glacial acetic acid tuaj yeem piav qhia raws li daim ntawv tseem ceeb ntawm acetic acid. Acetic acid yog cov organic compound uas muaj cov tshuaj formula CH3COOH. Yog li ntawd, molar mass ntawm no compound yog 60 g / mol, thaum lub npe IUPAC ntawm no compound yog Ethanoic acid. Ntxiv mus, nyob rau hauv chav tsev kub, glacial acetic acid yog cov kua tsis muaj xim uas muaj qaub saj.
Ntxiv mus, glacial acetic acid muaj cov ntxhiab tsw, uas zoo ib yam li cov tsw ntawm vinegar thiab muaj cov yam ntxwv qaub saj. Nws kuj yog ib qho tsis muaj zog acid vim nws dissociates ib feem nyob rau hauv ib tug aqueous tov, tso acetate anion thiab ib tug proton. Feem ntau, acetic acid muaj ib tug dissociable proton ib molecule. Txawm li cas los xij, glacial acid yog ib qho khaus khaus heev.
Peb tuaj yeem hu ua glacial acetic acid yog carboxylic acid vim tias muaj cov carboxylic acid pawg (-COOH). Glacial acetic acid yog ib qho yooj yim carboxylic acid; Qhov tseeb, nws yog qhov yooj yim thib ob carboxylic acid. Nyob rau hauv cov khoom ntawm cov khoom no, cov molecules tsim chains ntawm molecules ntawm hydrogen bonding. Txawm li cas los xij, nyob rau theem vapor ntawm qhov sib xyaw no, nws tsim dimers (ob lub molecules txuas rau ib leeg ntawm hydrogen bonds). Txij li cov kua glacial acetic acid yog cov kuab tshuaj polar protic, nws yog miscible nrog ntau cov polar thiab nonpolar solvents.
Vinegar yog dab tsi?
Vinegar yog cov tshuaj aqueous ntawm acetic acid nrog rau cov kab sib txuas, nrog rau cov tsw qab. Nws feem ntau muaj 5 - 8% ntawm acetic acid los ntawm ntim. Ntxiv mus, acetic acid yog tsim los ntawm ob txheej fermentation nyob rau hauv uas yooj yim suab thaj hloov mus rau hauv ethanol nyob rau hauv lub xub ntiag ntawm poov xab. Nws kuj hloov ethanol mus rau acetic acid nyob rau hauv muaj cov kab mob acetic acid.
Muaj ntau ntau yam ntawm vinegar, nyob ntawm seb cov khoom siv. Nws yog siv nyob rau hauv kev ua noj ua haus ua noj ua haus raws li ib tug flavorful, acidic ua noj cov khoom xyaw thiab nyob rau hauv pickling. Tsis tas li ntawd, peb tuaj yeem siv cov kua txiv hmab txiv ntoo sib txawv raws li cov khoom noj los yog cov khoom noj, xws li balsamic vinegar thiab m alt vinegar.
Thaum xav txog cov tshuaj ntawm vinegar, kev hloov pauv ntawm ethanol thiab oxygen rau hauv acetic acid ntawm cov tshuaj tiv thaiv hauv qab no;
CH3CH2OH + O2 → CH3COOH + H2O
Ntxiv mus, muaj ntau hom flavonoids, phenolic acid, thiab aldehydes hauv vinegar. Cov tebchaw sib txawv ntawm ib leeg raws li cov khoom siv uas muaj txiaj ntsig zoo hauv kev ua cov kua txiv hmab txiv ntoo, piv txwv li, txiv kab ntxwv tev lossis ntau yam kua txiv hmab txiv ntoo concentrates.
Qhov txawv ntawm Glacial Acetic Acid thiab Vinegar yog dab tsi?
Acetic acid yog ib qho tseem ceeb organic compound uas muaj ntau yam kev siv thiab kev siv hauv kev lag luam sib txawv. Qhov sib txawv tseem ceeb ntawm glacial acetic acid thiab vinegar yog tias glacial acetic acid yog ib daim ntawv ntawm acetic acid, hos vinegar yog ib tug tsawg concentrated daim ntawv ntawm acetic acid.
Cov hauv qab no qhia txog qhov sib txawv ntawm glacial acetic acid thiab vinegar hauv daim ntawv tabular rau kev sib piv ntawm ib sab.
Summary – Glacial Acetic Acid vs Vinegar
Qhov sib txawv tseem ceeb ntawm glacial acetic acid thiab vinegar nyob rau hauv lawv cov acetic acid concentration. Glacial acetic acid yog ib hom tshuaj muaj zog ntawm acetic acid, whereas vinegar yog ib daim ntawv tsis tshua muaj siab ntawm acetic acid.
