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Character:white monoclinic system crystals or crystalline powder.Metling point 190 . C -192 C, odorless but tastes sour. Color turns light yellow after long time storage. The product is easily soluble in water , slightly soluble in ethanol , insoluble in chloroform and ether and its water solution appears acidic. The PH value of the 5% water solution is 2.1-2.6 and the ratio rotation of the 10% (W/V) water solution is +20.5 . -+21.5 . |
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Uses:Vitamin C takes part in many metabolism procedures in the human body, helps decrease brittleness of blood capillaries and increase body resistance .In addition to prevention of scurvy ,it is often used as a supplement for treatment of acute or chronic infection diseases or purpura. |
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Packing:Net weight 25kg cardboard cartons /drums lined with a layer of craft paper and two layers of plastic bags |
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Certificate of Anallysis |
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Product
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Ascorbic Acid
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PACKING
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25Kg/PAPER BOX
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BATCH NO.
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201008001
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QUANTITY OF BATCH
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3.5t
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EXPIRTY
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ONE YEAR
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TEST NO.
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TV-0108002
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TEST DATE.
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2010.8.26
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REPORT DATE
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2010.8.26
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ACCORDING AS
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BP-2009
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ITEM
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QUALITY STANDARD
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RESULT
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APPEARANCE
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WHITE OR ALMOST WHITE, CRYSTAL OR CRYSTALLINE POWDER.
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CONFIRM
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CLARITY AND COLOR OF SOLUTION
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CLEAR,
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CLEAR,
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MELTING POINT
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190~192 ℃
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191.2 ℃
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SPECIFIC OPTICAL ROTATION
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+20.5~+21.5°
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+21.03°
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PH(5%,W/V)
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2.1-2.6
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2.34
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IDENTIFICATION
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POSITIVE
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POSITIVE
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RELATED SUBSTANCE
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IMPURITY C <0.15%
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CONFIRM
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IMPURITY D <0.10%
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CONFIRM
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ANY OTHER UNSPECIFIC IMPURITY <0.10%
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CONFIRM
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TOTAL IMPURITY <0.20%
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CONFIRM
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OXALATE
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<0.2%
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<0.2%
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RESIDUE ON IGNITION
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≤0.1%
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0.03%
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IRON
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≤2 PPM
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<2 PPM
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COPPER
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≤ 5 PPM
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< 5 PPM
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HEAVY METAL
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≤10 PPM
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≤10 PPM
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ARSENIC
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≤0.0003%
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<0.0003%
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ASSAY
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≥99.0%
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99.53%
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CONCLUSION
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COMPLIED WITH BP2007/USP30 GB 14754-1993
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China (Mainland)
