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25 Kilogram |
Negotiable |
L(+)-Ascorbic acid L-Ascorbic Ascorbic
we have GMP USP/EP standard
Vitamin C(Ascorbic acid)
Characteristics |
White or almost white crystalline powder |
Identification |
Positive reaction |
Melting point |
About 190℃ |
PH |
2.1-2.6 |
Clarity of solution |
Clear |
Color of solution |
≤BY2 |
Copper |
≤ 5ppm |
Heavy metals(Lead) |
≤ 10ppm |
Lead |
≤ 2ppm |
Iron |
≤ 2ppm |
Arsenic |
≤ 3ppm |
Oxalic acid |
≤ 0.2% |
Sulphated ash |
≤ 0.1% |
Specific optical rotation |
+20.5°~+21.5° |
Assay |
99.0%~100.5% |
Organic volatile impurities |
Pass |
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