1.Product Name: High Quality Vitamin C/ascorbic acid for Hot sale CAS 50-81-7
2.CAS NO: 50-81-7
3.Application: White or almost White Crystalline Powder
4.Sample: With Free
5.Specification:
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Certificate of Analysis
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ITEMS OF ANALYSIS
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SPECIFICATIONS
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RESULTS
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Appearance
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White crystalline powder
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Complies
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Identification
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Positive reaction
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Complies
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Assay
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≥99%
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100%
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Specific optical Rotation
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+20.5°~ +21.5°
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+20.8°
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Residue on ignition
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≤0.1%
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< 0.1%
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Ash
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≤0.1%
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0.03%
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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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Copper
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≤5ppm
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< 5ppm
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Microbiology
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Total plate count
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≤1000cfu/g
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< 1000cfu/g
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Yeast & Mould
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≤100cfu/g
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< 100cfu/g
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E.Coli
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Absent
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Absent
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Salmonella
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Negative
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Absent
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