Product Detail

Item	Specification	Result
Appearance	White or almost white crystalline powder or shiny flakes.	White crystalline powder
Solubility	Sparingly soluble in water, practically insoluble in alcohol.It dissolves in dilute mineral acids and in dilute solutions of alkali hydroxides.	conforms
Identification test (A,C)	Up to the standard	conforms
Appearance of solution	Clarity of solution:5% water solution should be clear.	conforms
Appearance of solution	Colour of solution:5% water solution should be not more intensively coloured than reference solution BY6.	conforms
Specific optical rotation	+14.5° to +16.5°	+15.2°
Assay	98.5-101.0%	99.5%
Chlorides	≤200ppm	<200ppm
Sulphates	≤300ppm	<300ppm
Ammonium	≤200ppm	<200ppm
Iron	≤10ppm	<10ppm
Heavy metals	≤10ppm	<10ppm
Loss on drying	≤0.5%	0.1%
Sulphated ash	≤0.1%	0.05%
Ninhydrin-positive substances (TLC)	Up to the standard	conforms
Result: The product conforms to the standard of EP6.0