This product can be used for titration analysis, qualitative and quantitative analysis, etc. It should be stored in a cool, ventilated place, sealed, and used within its expiration date. To obtain the product's Certificate of Analysis (COA), please visit www.howeipharm.com to view and download it.
Standard : Q/HWC032-2020 广州和为医药科技有限公司化学品制造标准
Product No. : CD100098
Product Name : L-Ascorbic acid
Product Spec. : 分析纯 AR,≥99.7%
Packges : 100g 500g 1kg 25kg
分子式 : C6H8O6
分子量 : 176.12
贝尔斯坦(Beilstein)注册号 : 84272
E Number : E300
EINECS 编号 : 200-066-2
MDL编号 : MFCD00064328
CAS号 : 50-81-7
颜色外观 Color Appearance : 白色或略带黄色结晶性粉末 White or slightly yellow crystalline powder
含量 Assay : ≥99.7%
比旋光度α(20 ℃,D)/{[(°)·m2]/kg} Specific rotation α(20 ℃, D) / {[(°)·m2]/kg} : +20.5～+21.5
澄清度试验 Clarity of solution : 合格 Pass
灼烧残渣(以硫酸盐计) Residue on ignition(as SO4) : ≤0.05%
干燥失重 Loss on drying : ≤0.1%
氯 Chloride(Cl) : ≤0.005%
硫酸盐(SO4) Sulfate(SO4) : ≤0.002%
铁(Fe) Iron（Fe） : ≤0.0002%
重金属(以Pb计) Heavy metals(as Pb) : ≤0.001%
熔点 Melting point : 190-194 °C
Shelf Life ： 730 Days
COA ： Have COA
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