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Quick Details

  • CAS No.: 50-81-7
  • MF: C6H8O6
  • EINECS No.: 200-066-2
  • Place of Origin: China (Mainland)
  • Type: Antioxidants
  • Appearance: white or a kind of white crystal powder
Product Description


AppearanceWhite or almost white crystal or crystalline powder
Melting point191 ℃ ~ 192℃
pH (5%, w/v)2.2 ~ 2.5
pH (2%,w/v)2.4 ~ 2.8
Specific optical rotation+20.5° ~ +21.5°
Clarity of solutionClear
Heavy metals≤0.0003%
Assay (as C 6H 8O6, %)99.0 ~ 100.5
Copper≤3 mg/kg
Iron≤2 mg/kg
Mercury≤1 mg/kg
Arsenic≤2 mg/kg
Lead≤2 mg/kg
Oxalic acid≤0.2%
Loss on drying≤0.1%
Sulphated ash≤ 0.1%
Residual solvents (as methanol)≤ 500 mg/kg
Total plate count (cfu/g)≤ 1000
Yeasts & molds (cfu/g)≤ 100
Escherichia. Coli/gAbsence
Salmonella/ 25gAbsence
Staphylococcus aureus/ 25gAbsence
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China (Mainland) | Trading Company
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Supplier's Trade Assurance Limit: US $51,000
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