Ascorbic acid (vitamin c)
Product name: Ascorbic acid (vitamin c)
CAS No.: 50-81-7
Molecular formula : C6H8O6
Molecular weight : 176.13
Ascorbic Acid Certification of Analysis
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Item
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Specifications
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Results
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Characteristics
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White or almost white crystalline powder
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Pass
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Identification
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Positive reaction
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Pass
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Melting Point
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About 190°C
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191°C
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PH
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2.1-2.6
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2.3
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Clarity of solution
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Clear
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Pass
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Color of solution
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≤BY7
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<BY7
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Copper
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≤5ppm
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<5ppm
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Heavy metals
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≤10ppm
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<10ppm
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Iron
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≤2ppm
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<2ppm
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Lead
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≤2ppm
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<2ppm
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Arsenic
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≤3ppm
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<3ppm
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Oxalic acid
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≤0.2%
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<0.2%
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Sulphated Ashes
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≤0.1%
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0.03%
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Specific optical Rotation
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+20.5°~ +21.5°
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+21.1°
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Assay
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99.0%-100.5%
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99.9%
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Organic volatile impurities
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Pass
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Pass
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Residual solvents
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Methanol: NMT 3000ppm
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<3000ppm
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Conclusion: The above product conforms to BP2007, USP31, EP6, GB14754
Storage:kept in a light-proof, well-closed, dry and cool place.
Packing: 25kg carton box ,1 FCL=20MT
Features: 1) It contains over 99.5% of ascorbic acid 2) Mainly used in producing various medicines, it is an important medicine for clinical supplementary treatment 3) It can be used in food additive. It is a good and safe nutritional agent as well as an antiseptic and baking agent of flour processing 4) It can be used in feed additive and can improve animals' immunity from disease 5) VC fine-crystal and fine powder with 40-80, 30 - 300 mesh (US standard sieve)
Pharma Sources Insight January 2025
