Dzina lazogulitsa:asidi asidi

Mtundu wa Molecular:C2H4O2

CAS No:64-19-7

Mankhwala maselo kapangidwe:

Kufotokozera:

Chemical Properties:

Acetic acid, CH3COOH, ndi madzi opanda mtundu, osasunthika pa kutentha kozungulira. Gulu loyera, glacial acetic acid, limadziwika chifukwa cha mawonekedwe ake ngati ayezi pa 15.6 ° C. Monga momwe zimaperekedwa, asidi acetic ndi 6 N amadzimadzi yothetsera (pafupifupi 36%) kapena 1 N yankho (pafupifupi 6%). Mankhwalawa amagwiritsidwa ntchito powonjezera asidi woyenerera ku zakudya. Acetic asidi ndi khalidwe asidi viniga, ndende yake kuyambira 3.5 mpaka 5.6%. Acetic acid ndi acetates amapezeka muzomera zambiri ndi nyama zanyama zochepa koma zowoneka. Ndiwodziwika bwino pakatikati pa kagayidwe kachakudya, amapangidwa ndi mitundu ya mabakiteriya monga Acetobacter ndipo amatha kupangidwa kwathunthu kuchokera ku carbon dioxide ndi tizilombo tating'onoting'ono monga Clostridium thermoaceticum. Makoswe amapanga acetate pamlingo wa 1% wa kulemera kwa thupi lake patsiku.

Monga colorless madzi ndi amphamvu, pungent, khalidwe vinyo wosasa fungo, ndi zothandiza batala, tchizi, mphesa ndi zipatso oonetsera. Acetic acid ochepa kwambiri monga choncho amagwiritsidwa ntchito muzakudya, ngakhale amagawidwa ndi FDA ngati zinthu za GRAS. Chifukwa chake, zitha kugwiritsidwa ntchito pazinthu zomwe sizikuphatikizidwa ndi Mafotokozedwe ndi Miyezo ya Identity. Acetic acid ndiye chigawo chachikulu cha vinegars ndi pyroligneous acid. Mu mawonekedwe a viniga, oposa 27 miliyoni lb anawonjezeredwa ku chakudya mu 1986, ndi pafupifupi ofanana ndalama ntchito ngati acidulants ndi flavoring agents. M'malo mwake, acetic acid (monga viniga) anali amodzi mwazinthu zokometsera zakale kwambiri. Viniga amagwiritsidwa ntchito kwambiri pokonzekera saladi kuvala ndi mayonesi, pickles wowawasa ndi okoma ndi sauces ambiri ndi makatsups. Amagwiritsidwanso ntchito pochiritsa nyama ndi kuika m’zitini zamasamba. Popanga mayonesi, kuwonjezera gawo la acetic acid (vinyo wosasa) ku mchere kapena shuga-yolk kumachepetsa kukana kwa kutentha kwa Salmonella. Zomangamanga zamadzi za soseji nthawi zambiri zimakhala ndi acetic acid kapena mchere wake wa sodium, pomwe calcium acetate imagwiritsidwa ntchito kusunga mawonekedwe a masamba odulidwa, zamzitini.

Ntchito:

1.Kugwiritsidwa ntchito popanga utoto ndi inki.

2. Amagwiritsidwa ntchito popanga mafuta onunkhira.

3. Amagwiritsidwa ntchito m'makampani a mphira ndi pulasitiki. Amagwiritsidwa ntchito ngati zosungunulira ndi zoyambira zopangira ma polima ambiri ofunikira (monga PVA, PET, etc.) m'makampani amphira ndi pulasitiki.

4. Amagwiritsidwa ntchito ngati zoyambira zopangira utoto ndi zomatira

5. Amagwiritsidwa ntchito m'makampani opanga zakudya monga chowonjezera mu tchizi ndi sosi komanso ngati chosungira chakudya.

Acetic acid - Chitetezo

Oral LD50 kwa makoswe: 3530mg/kg; percutaneous LDso kwa akalulu: 1060mg/kg; inhalation thLC50 ya mbewa: 13791mg/m3. zowononga. Inhalation wa mankhwalawa nthunzi amakwiyitsa mphuno, mmero ndi kupuma thirakiti. Zokhumudwitsa kwambiri m'maso. Chitetezo, muzimutsuka ndi madzi oyenda. Ndizoletsedwa kusakaniza ndi oxidizer, alkali, mankhwala odyedwa, ndi zina zotero. Sungani mu nyumba yosungiramo zinthu zozizira, zodutsa mpweya. Khalani kutali ndi gwero la moto ndi kutentha. Sungani chidebe chosindikizidwa. Sungani mosiyana ndi ma oxidizers ndi alkalis.