|
|
 |
产品名称：Ascorbic acid 维生素C |
| 产品说明 |
|
Specification of ascorbic acid 维生素C |
|
Product Name |
ASCORBIC ACID Vc |
|
Specification |
BP2002/USP26 |
|
Shelf Life |
3 Years |
|
Item |
Specification |
|
Characteristics |
White Crystalline Powder |
|
Identification |
Positive Reaction |
|
Melting Point |
About 190℃ |
|
PH |
2.1-2.6 |
|
Clarity Of Solution |
Clear |
|
Colour Of Solution |
BY7 max |
|
Copper |
5ppm max |
|
Heavy Metals |
10ppm max |
|
Iron |
2ppm max |
|
Oxalic Acid |
0.2% max |
|
Sulphate Ash(Residue On Ignition) |
0.1% max |
|
Specific Optical Rotation |
+20.5°–+21.5° |
|
Organic Volatile Impurities |
Pass |
|
Assay |
99.0%-100.5% |
|
Conclusion |
The Above-Mentioned Product Conforms To BP2002/USP26 | |
|
|
|
|
|
