C₆H₈O₇
Lub ntsiab tivthaiv ntawm citric acid yog nws cov mis nyuj consulula c₆h₈o₇, nrog molecular hnyav ntawm 192.12 g / mol. Nws belongs rau trricarboxylic acid (2-hydroxyprropane-1,2,3-tricarboxylic acid) ntawm organic cov kua qaub tsis muaj zog. Cov hauv qab no yog cov ncauj lus kom ntxaws ntxaws ntawm nws muaj pes tsawg leeg thiab cov yam ntxwv:
1. Tshuaj Txhuam Cov Qauv thiab Khoom
Tshuaj mis: c₆h₈o₇, muaj cov pab pawg carboxyl ({}}}}} Oh didic thiab muaj peev xwm ntawm chelating hlau ions.
Cov Khoom Siv Lub Cev: Cov hmoov dawb crystalline, Melting point 153-159 degree, decomposes saum 175 degree; Yooj yim soluble hauv dej (59% solubility ntawm 20 degree), ntom ntom), ntom), ntom 1.542 g / cmà aqueous daws).
Learence Daim Ntawv: Muab faib ua pob zeb lim thiab monohydrate citric acid (crystallized hauv dej txias). Thaum rhuab txog 78 degree, lub monohydrate hloov dua siab tshiab rau hauv kev xav tau.
2. Ntuj thiab hluavtaws cov ntaub ntawv
Nates cov chaw: Txuas dav pom hauv cov txiv ntoo xws li txiv qaub, thiab cov ntsiab lus ntawm cov txiv qaub), zoo li cov pob txha mos thiab ntshav.
Kev tsim khoom lag luam: feem ntau ua los ntawm fermentation ntawm qab zib ntawm qab zib ntawm qab zib {{} muaj cov tshuaj tsw qab thiab cov hmoov txhuv nplej siab, thiab yog ib qho ntawm cov organic acids nrog cov loj tshaj plaws hauv ntiaj teb.
3. Lwm cov ntaub ntawv tseem ceeb
Cas sau npe Naj npawb: 77-92-9, Ereecs Sau Npe: 201-069-1.
Cov ntsiab lus: citric acid, citric acid, thiab lwm yam.
Ntsiab lus: Cov Qauv Tseem Ceeb ntawm Citric Acid yog nws cov qauv tshuaj lom neeg, uas muaj ob qho chaw thiab hluavtaws siv nyob rau hauv cov zaub mov, tshuaj thiab chaw ua noj.
