Khoom npe:acetic acid

Molecular hom:C2h4o2

Cas:64-19-7

Khoom molecular qauv:

Cov Lus Qhia Tshwj Xeeb:

Tshuaj Tshuaj Muaj Zog:

Acetic acid, ch3cooh, yog cov kua tsis muaj kob, cov kua uas tsis muaj kev kub hnyiab ntawm huab cua kub. Cov ntshiab placound, glacial acetic acid, tshuav nws lub npe rau nws cov dej khov-li crystalline tsos ntawm 15.6 ° C. Raws li feem ntau muab, acetic acid yog 6 n aqueous daws (txog 36%) lossis 1 tus kev daws teeb meem (txog 6%). Cov kev ua haujlwm no lossis lwm yam kev ua haujlwm tau siv hauv kev ntxiv cov nyiaj ua pob txha acid rau cov zaub mov. Acetic acid yog cov xeeb ntxwv acid ntawm vinegar, nws concentration xws li 3.5 txog 5.6%. Acetic acid thiab acetates yog tam sim no nyob rau hauv feem ntau cov nroj tsuag thiab tsiaj cov ntaub so ntswg nyob rau hauv me me tab sis kuaj tau nyiaj. Lawv yog cov metabolic nruab nrab, yog tsim los ntawm hom kab mob xws li acetobacacter thiab tuaj yeem suav ua ke los ntawm cov kab mob carbon dioxide los ntawm cov kab mob me me thermoaceticum. Cov nas cov qauv acetate ntawm tus nqi ntawm 1% ntawm nws lub cev hnyav ib hnub.

Raws li cov kua tsis muaj kob uas muaj zog, pungent, cov yam ntxwv tsw ntxhiab tsw, nws pab tau nyob rau hauv butter, cheese, txiv hmap thiab txiv hmab txiv ntoo qab zib. Tsawg heev me ntsis acetic acid li xws li siv nyob rau hauv cov zaub mov, txawm hais tias nws tau cais los ntawm FDA ua cov khoom siv gras. Yog li ntawd, nws yuav ua haujlwm hauv cov khoom uas tsis tau them los ntawm cov ntsiab lus thiab cov qauv ntawm tus kheej. Acetic Acid yog thawj lub tsev kawm ntawv cheebtsam ntawm cov kua txiv hmab thiab pyrolignoous acid. Nyob rau hauv daim ntawv ntawm vinegar, ntau dua 27 lab LB tau ntxiv rau cov khoom noj hauv xyoo 1986, nrog kwv yees li cov actomulants thiab cov neeg sawv cev. Qhov tseeb, acetic acid (raws li vinegar) yog ib qho ntawm cov tsw qab thaum ntxov tshaj plaws. Vinegars tau siv dav nyob rau hauv npaj zaub xam lav hnav khaub ncaws thiab mayonnaise, qaub thiab qab zib pickles thiab miv thiab miv. Lawv kuj tseem siv hauv kev kho nqaij thiab hauv cov canning ntawm qee cov zaub. Hauv kev tsim cov mayonnaise, ntxiv rau ntawm ib feem ntawm acetic acid (vinegar) rau ntsev- lossis piam thaj-yolk txo cov kub ua rau tus pas ntsuas kub. Cov dej khi cov khoom siv ntawm cov hnyuv feem ntau suav nrog cov acetic acid lossis nws cov ntsev ntsev, thaum cov zaub caletium los khaws cia cov zaub mov, cov zaub hauv kaus poom.

Daim Ntawv Thov:
Kev siv cov acetic acid hauv kev lag luam

1. Siv nyob rau hauv synthesis ntawm dyes thiab inks.

2. Nws yog siv nyob rau hauv synthesis ntawm cov ntxhiab.

3. Nws yog siv nyob rau hauv cov roj hmab thiab kev lag luam yas. Nws yog siv los ua cov kuab tshuaj thiab pib cov khoom rau ntau cov polymers tseem ceeb hauv cov roj hmab thiab cov pva, tus tsiaj, thiab lwm yam).

4. Nws yog siv los ua cov khoom pib rau cov xim thiab pleev xim nplaum

5. Siv hauv kev ua zaub mov noj ua kev ntxiv hauv cheese thiab cov kua ntses thiab ua zaub mov khaws cia.

Siv ntawm acetic acid hauv tshuaj schthesis

1.Txhua hauv cov synthesis ntawm cellulose acetate. Cellulose acetate yog siv hauv cov duab ua yees duab thiab cov ntawv nyeem. Ua ntej kev tsim muaj ntawm cellulose zaj duab xis, zaj duab xis yees duab tau siv los ntawm nitrate, uas muaj teeb meem kev nyab xeeb.

2. Siv los ua cov kuab tshuaj rau cov synthesis ntawm terepthalic acid. Paraxylene yog oxidized rau terephthalic acid. Terephthalic acid yog siv los ua synthesize tus tsiaj, uas yog dav siv los ua cov hwj yas.

3. Siv dav nyob rau hauv cov tshuaj tiv thaiv nrog ntau yam dej nrog synthesize esters. Acetate derivatives tau siv dav siv raws li cov zaub mov ntxiv.

4. Siv nyob rau hauv synthesis ntawm vinyl acetate monomer. Cov Monomer tuaj yeem yog polymerized los ua poly (yas acetate) kuj feem ntau paub txog PVA. PVA muaj ntau cov ntawv thov los ntawm tshuaj (vim nws biocompatibility rau nanotechnology (raws li lub stabilizer) rau ntawv kev ua).

5. Siv los ua cov kuab tshuaj nyob hauv ntau cov orgocatalytic cov tshuaj tiv thaiv.

Kev siv cov acetic acid hauv cov tshuaj

1. Cov txheej txheem acetic yog siv rau hauv cov txheej txheem hu ua pigmented endoscopy, uas yog lwm txoj hauv kev rau endoscopy.

2. Acetic acid yog siv rau kev pom kev ntawm ncauj tsev menyuam kab mob cancer thiab qhov txhab. Nws tseem siv rau kev kuaj mob ncauj tsev menyuam.

3. Acetic acid yog siv los kho otitis exabla.

4. Cov acetic acid yog qee zaum siv los kho cov kab mob thiab kab mob fungal.

5. Hauv kev kuaj sim ntawm nas, acetic acid tau pom tias yuav tsum tau teb rau cov nas.

Tsev neeg siv ntawm acetic acid

1. Acetic Acid yog lub ntsiab tivthaiv ntawm vinegar.

2. Vinegar yog siv rau pickling zaub

3. Nws yog siv rau zaub xam lav hnav

4. Nws yog siv nyob rau hauv lub ci txheej txheem. Nws reacts nrog ci dej qab zib los tso cov pa roj carbon dioxide kom ua cov khoom noj khoom haus.

5.usused ua antifungal tus neeg sawv cev.