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Silicon Dioxide | 7631-86-9
Cov Khoom Piav Qhia Cov tshuaj lom neeg sib xyaw Silicon Dioxide, tseem hu ua silica (los ntawm Latin silex), yog ib qho oxide ntawm silicon nrog cov tshuaj formula SiO2. Nws tau paub txog nws hardness txij thaum ancient sij hawm. Silica feem ntau pom muaj nyob rau hauv cov xuab zeb lossis quartz, nrog rau hauv cov phab ntsa ntawm tes ntawm diatoms. Silica yog tsim nyob rau hauv ntau hom xws li fused quartz, siv lead ua, fumed silica (los yog pyrogenic silica), colloidal silica, silica gel, thiab aerogel. Silica yog siv feem ntau ... -
Sodium Erythorbate | 6381-77-7 ib
Cov Khoom Piav Qhia Nws yog xim dawb, tsis muaj ntxhiab, crystalline lossis granules, me ntsis ntsev thiab yaj hauv dej. Nyob rau hauv solid-state nws yog ruaj khov nyob rau hauv cov huab cua, Nws cov dej tov yog yooj yim mutated thaum nws ntsib nrog huab cua, kab hlau cua kub thiab lub teeb. Sodium Erythorbate yog ib qho tseem ceeb antioxidant hauv kev lag luam khoom noj khoom haus, uas tuaj yeem khaws cov xim, ntuj tsw ntawm cov khoom noj thiab ua kom ntev nws qhov chaw cia yam tsis muaj tshuaj lom thiab muaj kev phiv. Lawv yog siv nyob rau hauv cov nqaij ua txiv hmab txiv ntoo, zaub, tin, thiab jams, etc.Als ... -
Sodium Ascorbate | 134-03-2 : kuv
Cov Khoom Piav Qhia Sodium Ascorbate yog dawb los yog lub teeb daj crystalline khoom, lg ntawm cov khoom tuaj yeem yaj hauv 2 ml dej. Tsis soluble nyob rau hauv benzene, ether chloroform, insoluble nyob rau hauv ethanol, zoo li ruaj khov nyob rau hauv qhuav huab cua, noo noo nqus thiab dej tov tom qab oxidation thiab decomposition yuav qeeb, tshwj xeeb tshaj yog nyob rau hauv nruab nrab los yog alkaline kua yog oxidized sai heev. preservative hauv kev lag luam khoom noj khoom haus; uas tuaj yeem khaws cov zaub mov co ... -
Erythorbic Acid | 89-65-6 : kuv
Cov Khoom Piav Qhia Erythorbic Acid lossis erythorbate, yav tas los hu ua isoAscorbic Acid thiab D-araboascorbic acid, yog ib qho stereoisomer ntawm ascorbic acid.Erythorbic acid, molecular mis C6H806, txheeb ze molecular mass 176.13. Dawb mus rau daj daj crystals uas zoo nyob ruaj khov nyob rau hauv cov huab cua nyob rau hauv qhuav lub xeev, tab sis deteriorate sai heev thaum raug rau huab cua nyob rau hauv kev daws. Nws cov khoom antioxidant zoo dua li ascorbic acid, thiab tus nqi pheej yig. Txawm hais tias nws tsis muaj qhov cuam tshuam physiological ... -
Ascorbic Acid | 50-81-7 : kuv
Khoom Piav Qhia Ascorbic Acid yog dawb los yog daj me ntsis crystals los yog hmoov, me ntsis acid.mp190 ℃ -192 ℃, yooj yim soluble hauv dej, me ntsis soluble hauv cawv thiab uneasily soluble nyob rau hauv ether thiab chloroform thiab lwm cov organic hnyav. Nyob rau hauv solid-state nws yog ruaj khov nyob rau hauv huab cua. Nws cov dej daws tau yooj yim hloov pauv thaum nws ntsib nrog huab cua. Kev Siv: Hauv kev lag luam kws tshuaj, tuaj yeem siv los kho scurvy thiab ntau yam kab mob sib kis thiab mob ntev, muaj feem xyuam rau qhov tsis muaj VC. Hauv... -
Kojic Acid | 501-30-4 : kuv
Cov Khoom Piav Qhia Kojic Acid yog tus neeg sawv cev chelation tsim los ntawm ntau hom fungi, tshwj xeeb tshaj yog Aspergillus oryzae, uas muaj lub npe Japanese hom koji. Kev siv tshuaj pleev ib ce: Kojic Acid yog ib qho me me inhibitor ntawm kev tsim cov xim nyob rau hauv cov nroj tsuag thiab tsiaj cov ntaub so ntswg, thiab yog siv nyob rau hauv cov zaub mov thiab tshuaj pleev ib ce los khaws cia los yog hloov xim ntawm cov tshuaj thiab lighten daim tawv nqaij. Kev siv zaub mov: Kojic acid yog siv rau ntawm cov txiv hmab txiv ntoo txiav los tiv thaiv oxidative browning, hauv cov nqaij nruab deg kom khaws cov xim liab thiab xim liab Kev kho mob: Ko...
