0102 ib0304 ib05
Raw Khoom ntawm Vc Ascorbic Acid CAS 50-81-7 Vitamin C Dawb Crystal
Cov khoom
•Vapor Siab:0 mmHg ntawm 25 ° C
•Melting Point:190-194 ° C (Lub Kaum Ob Hlis)
• Boiling Point: 415.8 °C ntawm 760 mmHg
•Refractive Index:21 ° (C = 10, H2O)
•Flash Point:180.4 ° C
•Qhov ntom:1.954 g / cm3
•PKA:4.04, 11.7 (ntawm 25 ℃)
•PSA:107.2200 Nws
•Cia Temp.:0-6 ° C
•Solubility.:H2O: 50 mg / mL ntawm 20 ° C, ntshiab, ze li colo
• Cov tsos mob:siv lead ua dawb
• LogP:-0.45510
Specification
Cov ntsiab lus tsom xam | Analysis Standard | Kev txheeb xyuas qhov tshwm sim | ||
| PH | 2.1-2.6 | 2.43 ib | ||
| Residue ntawm ignition | 0.40% Max | 0.07% | ||
| Hnyav Hlau | ≤10ppm | |||
| Coj | | | ||
| Arsenic | ≤ 3ppm | |||
| Kev ziab qhuav | ≤ 0.4% | |||
| Sulphate Ash (Residue On Ignition) | ≤0.1% | |||
| Mesh | 40-80 Mesh | Hla | ||
| Assay | 99.0% -100.5% | 99.92% | ||
Cov khoom siv
1.Ascorbic acid, tseem hu ua vitamin C, pab ntau yam haujlwm tseem ceeb hauv tib neeg lub cev. Nws ua raws li cov tshuaj antioxidant, cofactor rau ntau cov tshuaj tiv thaiv enzymatic, coenzyme, tshuaj kho cov hmoov nplej, cov zaub mov antioxidant, cov nroj tsuag metabolite, tus neeg sawv cev ntawm daim tawv nqaij, thiab cov khoom noj xim.
2.Ascorbic acid yog ib qho organic compound uas muaj nyob rau hauv pawg ntawm unsaturated polyhydroxy alcohols. Nws yog ib qho dej-soluble ketolactone nrog tsib lub nplhaib carbon. Nws muaj zog txo cov khoom vim muaj ob daim ntawv cog lus ntawm C2 thiab C3 carbons thiab plaub pawg hydroxyl. Ascorbic acid ua hauj lwm raws li ib tug hydrogen los yog electron pub, ua nws ib cofactor nyob rau hauv ntau enzymatic cov tshuaj tiv thaiv.
3. Thaum cov tsiaj txhu feem ntau tuaj yeem tsim cov ascorbic acid los ntawm cov piam thaj, tib neeg tsis muaj cov enzyme tsim nyog thiab yuav tsum tau txais los ntawm lawv cov khoom noj. Cov kev xav tau niaj hnub rau kev noj tshuaj ascorbic acid sib txawv, nrog rau cov poj niam xav tau ntawm 75 mg thiab cov txiv neej nyob ib ncig ntawm 90 mg. Thaum citrus txiv hmab txiv ntoo feem ntau txuam nrog ascorbic acid, lwm yam txiv hmab txiv ntoo, zaub, thiab nqaij kuj ua raws li cov khoom noj.
4. Ascorbic acid yog ib qho tseem ceeb uas tsis muaj molecular-yuag antioxidant uas tswj cov qib ntawm cov pa oxygen reactive (ROS) thiab txhim kho cov txiaj ntsig ntawm lwm cov tshuaj antioxidants. Nws ua lub luag haujlwm hauv ROS cov cai ntawm lawv cov theem tsim thiab pub rau ib qho kev txo qis. Nws txhawb kev ua haujlwm ntawm cov enzymes antioxidant xws li superoxide dismutase (SOD) thiab tseem ceeb heev rau collagen synthesis.
Ntim Thiab Cia
Pob:
25kg / carton nruas lossis raws li koj xav tau.
Lus Cim: Cov tshuaj muaj pes tsawg leeg thiab qhov loj tuaj yeem ua kom zoo los ntawm cov neeg siv khoom xav tau
Cia:
Sib cais los ntawm cov oxidants muaj zog thiab muaj zog hauv paus. Cov kev daws teeb meem ntawm ascorbic acid yog oxidized sai heev hauv huab cua thiab hauv alkaline xov xwm; cov tshuaj yuav tsum tau tiv thaiv los ntawm huab cua thiab lub teeb.
Kev Tiv Thaiv Kev Nyab Xeeb
Kev ceev faj rau kev nyab xeeb
TSIS qhib nplaim taws. Tuav nyob rau hauv qhov chaw zoo ventilated. Hnav khaub ncaws tiv thaiv kom haum. Tsis txhob kov ntawm daim tawv nqaij thiab qhov muag. Tsis txhob tsim cov hmoov av thiab aerosols. Siv cov cuab yeej tsis muaj teeb meem. Tiv thaiv hluav taws los ntawm electrostatic tawm chav.