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Shanghai Food Chem

China Manufacturer with main products: Thickeners, Sweeteners, Flavors, Preservatives, Antioxidants, Acidulants, Proteins, Vitamins

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Vitamin C

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Export Markets: North America


Name Ascorbic Acid
CAS No. 50-81-7
Chemical Formula C6H8O6
Specification BP 2004/ USP 29 / FCC V
Packing In 25kg cartons
Functional use Antioxidant
Items Specifications
Appearance White crystalline powder
Identification Positive reaction
Melting point About 190 ℃
Specific rotation +20.5 --- +21.5 o
PH value 2.1 - 2.6
Clarity of solution Clear
Colour of solution BY7 max
Heavy metals 10 ppm max
Copper 5 ppm max
Iron 2 ppm max
Assay(on dried basis) 99.0 - 100.5%
Residue on ignition 0.1% max
Organic volatile impurities Conforms
Oxalic Acid 0.2% max 

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