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  1. Shanghai Fine Chemicals

    API • Vitamins • Food ingredients
    Veterinary Injection & Premix

    Ascorbic Acid

    Testing Items     Specification   
    APPEARANCE WHITE OR ALMOST WHITE,CRYSTAL OR CRYSTALLINE POWDER
    IDENTIFICATION POSITIVE
    MELTING POINT 191℃~192℃
    PH 2.2~2.5
    CLARITY OF SOLUTION CLEAR
    HE**Y METALS ≤0.0003%
    ASSAY 99.0%~100.5%
    COPPER (ppm) ≤3.0
    IRON (ppm) ≤2.0
    MERCURY (ppm) ≤1.0
    ARSENIC ≤0.0002%
    LEAD ≤0.0002%
    OXALIC ACID ≤0.2%
    LOSS ON DRYING ≤0.1%
    SULPHATED ASH ≤0.1%
    RESIDUAL SOLVENTS(as methanol ) (ppm) ≤500
    TOTAL PLATE COUNT(cfu/g) ≤1000
    YEASTS & MOLDS(cfu/g) ≤100
    ESCHERICHIA.COLI  ABSENCE
    SALMONELLA ABSENCE
    STAPHYLOCOCCUS AUREUS  ABSENCE
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