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1.Product Name: Ascorbic Acid
2.CAS NO: 50-81-7
3.Application: Food&Feed additives
4.Sample: With Free
5.Specification:
ITEMS |
SPECIFICATION |
Characteristics |
White or almost white crystals crystalline powder |
Identification |
Positive reaction |
Melting Point |
About 190°C |
pH |
2.1~2.6 |
Clarity Of Solution |
Clear |
Colour Of Solution |
≤BY7 |
Loss On Drying |
0.4% Max |
Arsenic |
≤3ppm |
Lead |
≤2ppm |
Copper |
≤5ppm |
Heavy Metals |
≤10ppm |
Iron |
≤2ppm |
Mercury |
≤1ppm |
Oxalic Acid |
≤0.2% |
Sulphate Ash (Residue On Ignition) |
≤0.1% |
Specific Optical Rotation |
+20.5°~+21.5° |
Organic Volatile Impurities |
Pass |
Assay |
99.0%~100.5% |
Conclusion: Conforms to the standard of BP2013/USP36/E500/FCCVI |