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. : CD102390
Product Name : Ascorbic acid
Product Spec. : AR,≥99.7%
Packges : 100g 500g 1kg 25kg
CAS号 : 50-81-7
分子式 : C6H8O6
分子量 : 176.12
含量 Assay : ≥99.7%
澄清度试验 Clarity of solution : ≤3 号
灼烧残渣(以硫酸盐计) Residue on ignition(as sulfate) : ≤0.05%
干燥失重 ,w/% : ≤0.1%
氯化物 Chloride(Cl) : ≤0.005%
硫酸盐 Sulphate (SO4) : ≤0.002%
铁 Iron(Fe) : ≤0.0002%
重金属(以Pb计) Heavy metals（as Pb） : ≤0.001%
比旋光本领(20 ℃,D)/{[(°)·m2]/kg} Specific rotation (at 20 ℃, D) / {[(°)·m2]/kg} : +20.5~+21.5
颜色外观 Color Appearance : 白色结晶或结晶性粉末
熔点 Melting point, ℃ : 190 ℃-194 ℃
Shelf Life ： 730 Days
COA ： Have COA
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