Technical Specifications:

ASCORBIC ACID IP
Test	Results
Description	White crystalline powder
Solubility	Complies
Identification
A. IP absorption	Complies
B. Add 2ml of 2%w/v soln. to a few ml of 2.6 dichlorophenolindophenol soln. the soln. is decolorised	Complies
pH	2.39
Clarity and colour of solution	Complies
Specific optical rotation (10% w/v Solution)	+20.98°
Light absorption	Complies
Oxalic acid	Less than 0.2% w/v
Heavy metals	Less than 10 ppm
Sulfated ash	0.07% w/w
Assay	99.39% w/w

Note: This article uses material from the http://rxmarine.com/