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Item Code:Ascorbic Acid Features:

Specification Sheet

Items	Specifications

Characteristics	White crystals or crystalline powder
Indentification	Positive reaction
Clarity of Solution	Clear
Colour of Solution	BY7 max.
Melting Point	About 190℃
Assay	99.0 - 100.5%
Acidity (pH)	2.1 - 2.6
Residue on Ignition	0.1% max.
Specific Optical Rotation	+20.5º- +21.5º
Heavy Metals	10ppm max.
Oxalic Acid	0.2% max.
Copper	5ppm max.
Iron	2ppm max.
Organic Volatile Impurities	Meets the requirements