Citric Acid yog ib qho kua qaub
CAS Naj Npawb: 77-92-9
EINECS:201-069-1
Cov tshuaj formula: C6H8O7
Ntim: 25KG / hnab
Molecular Luj: 192.122
CITRIC ACID muaj
Specification
Molecular daim ntawv. C₆H₈O₇. Citric acid (CA) yog ib qho tseem ceeb organic tsis muaj zog acid. Nws yog cov xim tsis muaj xim, tsis muaj ntxhiab, soluble hauv dej thiab acidic hauv kev daws. Hauv biochemistry, nws yog ib qho nruab nrab ntawm lub voj voog citric acid (tricarboxylic acid voj voog), uas tshwm sim hauv cov metabolism hauv txhua yam kab mob aerobic.
Cov xim tsis muaj xim tsis muaj xim dawb lossis dawb dawb lossis dawb crystalline hmoov, feem ntau muaj ib qho molecule ntawm crystalline dej, tsw ntxhiab, tsis tshua muaj acidic, soluble hauv dej, cawv, thiab ether. Nws cov ntsev calcium ntau dua soluble hauv dej txias dua dej kub, thiab cov cuab yeej no feem ntau siv los txheeb xyuas thiab cais nws.
|
Cov khoom npe |
Citric acid Anhydrous |
|
Qhov tshwm sim |
Tsis muaj xim los yog dawb crystals los yog hmoov, tsw thiab saj |
|
Cov ntsiab lus (%) |
99.8 |
|
Lub teeb Transmittance (%) |
99.9 |
|
Moisture (%) |
0.1 |
|
Npaj Carbonisable Khoom |
0.1 |
|
Sulfated tshauv (%) |
﹤0.05 |
|
Chloride (%) |
﹤0.005 |
|
Sulfate (%) |
﹤0.01 |
|
Oxalate (%) |
﹤0.01 |
|
Calcium (%) |
﹤0.02 |
|
Hlau (mg / kg) |
﹤5 |
|
Arsenic (mg / kg) |
﹤1 |
|
Cov hmoov txhuas (mg / kg) |
﹤0.5 |
Daim ntawv thov
Citric acid yog cov organic acid uas tsim los ntawm microbial fermentation, uas yog siv dav hauv kev tsim cov tshuaj ntxuav tes, thiab nws tus kheej tshwj xeeb thiab chelation ua lub luag haujlwm tseem ceeb. nws nyob rau hauv kev siv tiag tiag ntawm cov txheej txheem, muaj kev ua tau zoo, feem ntau nyob rau hauv cov nqe lus ntawm kev nyab xeeb yog qhov tseem ceeb, kev npaj ntawm nws raw cov ntaub ntawv yog muab los ntawm cov zaub mov, uas yog muaj kev ruaj ntseg zaub mov qib microorganisms. Kev siv nws yuav tsis cuam tshuam rau ib puag ncig, nws yooj yim rau degrade nyob rau hauv qhov kev txiav txim ntawm cov kab mob thiab cov cua sov, thiab nws tus kheej muaj peev xwm chelating kuj tseem muaj zog. Lub ntsiab citrate muaj zog chelate muaj peev xwm rau manganese ion thiab hlau ion, thiab cov nyhuv siv kuj tseem ceeb.
Hom kev muaj nyob:
Citric acid tuaj yeem tshwm sim raws li anhydrous lossis monohydrous. Cov ntaub ntawv siv lead ua ntawm nws txawv vim qhov sib txawv crystallization, me ntsis weathered nyob rau hauv qhuav huab cua, hygroscopic nyob rau hauv cov huab cua ntub, cua sov yuav decomposed rau hauv ntau yam khoom, thiab muaj peev xwm reacts nrog acids, bases, glycerin, thiab lwm yam. Anhydrous nws yog crystallized. los ntawm dej kub, thaum citric acid monohydrate yog crystallized los ntawm dej txias. Citric acid monohydrate tuaj yeem hloov mus rau anhydrous ntawm li 78 degree los ntawm kev tshem cov dej khi. Nws tuaj yeem yaj hauv anhydrous ethanol ntawm 15 degree (76 feem ntawm citric acid ib 100 feem ntawm ethanol) thiab tuaj yeem ua rau muaj ethanol los ua ethyl citrate. Ntawm qhov kub siab tshaj li 175 degree, nws tawg thiab tso tawm carbon dioxide.
Ua tsaug rau koj tuaj xyuas thiab txais tos koj cov lus nug zoo!
Cim npe nrov: citric acid yog cov kua qaub, Tuam Tshoj citric acid yog cov kua qaub manufacturers, lwm tus neeg, Hoobkas
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