cov khoom
Zoo Muag Khoom Zaub Mov Qib Citric Acid Monohydrate CAS77-92-9
Product details
MF: C6H10O8
PIB: 210.1388
CAS: 5949-29-1 Nr
1.Citric acid monohydrate yog siv lead ua tsis muaj xim lossis dawb crystalline hmoov, nrog rau qhov ceev ntawm 1.54.Melting point 135-152 ℃.Flash point 173.9 ℃.Soluble dej 1630 g / l (20 ℃).
2.Colorless siv lead ua los yog dawb crystalline hmoov.
3.White crystalline hmoov, yooj yim soluble nyob rau hauv methanol thiab dej, los ntawm tsaus plum, qab zib txiv kab ntxwv thiab txiv qaub kua txiv.
4.Cov khoom no yog tsim los ntawm fermentation.Nws cov khoom siv raw tuaj yeem yog carbohydrates xws li molasses, sucrose, qos yaj ywm qab zib thiab roj av hydrocarbons.Feem ntau, fungi yog siv rau fermentation.Raws li hom fermentation, nws tuaj yeem muab faib ua qhov chaw fermentation thiab sib sib zog nqus fermentation.Nto fermentation yog ib txoj kev tsim thaum ntxov, siv qee yam Penicillium lossis Aspergillus niger li hom;Nyob rau hauv txoj kev submerged fermentation, Aspergillus niger kuj yog siv los ua ib hom kab mob.Thaum lub sij hawm fermentation txheej txheem, ib pob me me ntawm cov ntaub ntawv zoo li mycelium polymer yog generated.Kev loj hlob thiab nyias mycelium yuav tsum zam.Qhov xwm txheej fermentation yog tias tus nqi pH yog 1.5 ~ 2.8.Nyob rau tib lub sijhawm, huab cua tsis muaj menyuam yuav tsum tau qhia thiab nplawm.Tom qab fermentation, mycelium thiab cov khib nyiab seem yuav tsum tau lim tawm.Cov filtrate yog neutralized nrog calcium carbonate kom tau calcium citrate, thiab ces neutralized nrog concentrated sulfuric acid kom tau crude citric acid, cov khoom tiav yog refined, concentrated thiab crystallized los ntawm ion pauv resin.
Daim ntawv thov
1.Citric acid monohydrate feem ntau yog siv hauv kev lag luam khoom noj khoom haus thiab dej haus raws li tus neeg sawv cev qaub, seasoning agent, preservative thiab preservative.Nws kuj yog siv los ua antioxidant, plasticizer thiab detergent hauv kev lag luam tshuaj, tshuaj pleev ib ce kev lag luam thiab kev lag luam ntxhua khaub ncaws.
2.Nws yog siv los ua cov kua qaub rau cov khoom noj, thiab tseem siv los npaj cov tshuaj coolants, detergent additives, thiab lwm yam.
3.Ntev bismuth, nitrite, oxygen thiab dej, txiav txim siab aluminium, tooj liab, mercury, npib tsib xee, oxygen thiab thorium, siv los ua cov tshuaj chelating ntau yam, tshem tawm cov kab hlau, npaj cov tshuaj tsis haum, thiab txiav txim siab cov ntshav poov tshuaj.
