Sunan samfur:acetic acid

Tsarin kwayoyin halitta:Saukewa: C2H4O2

CAS No:64-19-7

Tsarin kwayoyin halitta:

Bayani:

Abubuwan Sinadarai:

Acetic acid, CH3COOH, ruwa ne mara launi, mara canzawa a yanayin yanayin yanayi.Ginin tsantsa, glacial acetic acid, yana da sunansa ga bayyanarsa mai kama da kankara a 15.6°C.Kamar yadda ake bayarwa gabaɗaya, acetic acid shine maganin ruwa na 6 N (kimanin 36%) ko maganin 1 N (kimanin 6%).Ana amfani da waɗannan ko wasu dilutions wajen ƙara daidai adadin acetic acid zuwa abinci.Acetic acid shine halayyar acid na vinegar, maida hankali daga 3.5 zuwa 5.6%.Acetic acid da acetates suna cikin mafi yawan tsire-tsire da kyallen jikin dabba a cikin ƙananan ƙananan amma ana iya ganowa.Su ne matsakaicin matsakaici na rayuwa na yau da kullun, nau'ikan nau'ikan ƙwayoyin cuta ne kamar acetobacter ke samarwa kuma ana iya haɗa su gaba ɗaya daga carbon dioxide ta irin waɗannan ƙwayoyin cuta kamar Clostridium thermoaceticum.Bera yana samar da acetate a ƙimar 1% na nauyin jikinsa kowace rana.

A matsayin ruwa mara launi tare da karfi, pungent, halayyar vinegar wari, yana da amfani a cikin man shanu, cuku, inabi da dandano 'ya'yan itace.Ana amfani da acid mai tsafta sosai a cikin abinci, kodayake FDA ta ware shi azaman kayan GRAS.Saboda haka, ana iya amfani da shi a cikin samfuran da ba a rufe su ta Ma'anoni da Ka'idodin Identity.Acetic acid shine babban bangaren vinegar da pyroligneous acid.A cikin nau'i na vinegar, an ƙara fiye da 27 miliyan lb a abinci a cikin 1986, tare da kimanin daidaitattun adadin da aka yi amfani da su azaman acidulants da abubuwan dandano.A gaskiya ma, acetic acid (kamar vinegar) ya kasance daya daga cikin abubuwan dandano na farko.Ana amfani da ruwan inabi sosai wajen shirya kayan miya na salad da mayonnaise, miya mai tsami da zaƙi da miya da miya da yawa.Ana kuma amfani da su wajen warkar da nama da kuma gwangwani na wasu kayan lambu.A cikin kera mayonnaise, ƙara wani yanki na acetic acid (vinegar) zuwa gishiri-ko gwaiduwa-sukari yana rage zafin zafi na Salmonella.Abubuwan dauri na ruwa na tsiran alade sukan haɗa da acetic acid ko gishirin sodium, yayin da ake amfani da calcium acetate don adana nau'in yankakken, kayan lambun gwangwani.

Aikace-aikace:

Acetic acid yana faruwa a cikin vinegar.An samar a cikin lalata distillation na itace.Yana samun aikace-aikace mai yawa a cikin masana'antar kimiyya.Ana amfani dashi a cikin samar da acetate acetate, acetate rayon, da kuma daban-daban acetate da acetyl mahadi;a matsayin kaushi ga gumis, mai, da resins;a matsayin mai adana abinci a cikin bugu da rini;kuma a cikin kwayoyin halitta.

Acetic acid shine muhimmin sinadari na masana'antu.Halin acetic acid tare da hydroxyl dauke da mahadi, musamman alcohols, yana haifar da samuwar acetate esters.Mafi girman amfani da acetic acid shine a cikin samar da acetate na vinyl.Za a iya samar da acetate na vinyl ta hanyar amsawar acetylene da acetic acid.Ana kuma samar da shi daga ethylene da acetic acid.Vinyl acetate an polymerized zuwa polyvinyl acetate (PVA), wanda ake amfani dashi wajen samar da zaruruwa, fina-finai, adhesives, da fenti na latex.
Cellulose acetate, wanda aka yi amfani da shi a cikin yadi da fim na hoto, ana samar da shi ta hanyar amsa cellulose tare da acetic acid da acetic anhydride a gaban sulfuric acid.Sauran esters na acetic acid, irin su ethyl acetate da propyl acetate, ana amfani da su a aikace-aikace iri-iri.
Ana amfani da acid acetic don samar da filastik polyethylene terephthalate (PET).Ana amfani da acetic acid don samar da magunguna.

Glacial Acetic Acid shine acidulant wanda yake bayyananne, ruwa mara launi wanda ke da ɗanɗanon acid lokacin da aka shafe shi da ruwa.Yana da 99.5% ko mafi girma a cikin tsabta kuma yana yin crystallizes a 17 ° C.Ana amfani da shi a cikin kayan ado na salad a cikin nau'i mai diluted don samar da acetic acid da ake bukata.Ana amfani da shi azaman mai kiyayewa, acidulant, da wakili na ɗanɗano.Hakanan ana kiranta acetic acid, glacial.