Items

Specification

Appearance

White or almost white crystalline powder

Identification

Positive

pH

6.8~7.6

Clarity of Solution

Clear

Color of Solution

Not more than solution Y7

Heavy metals

≤10ppm

Chlorides

≤600ppm

Loss on drying

≤1.0%

Sulphated Ash

≤0.1%

Organic volatic impurities

Ethanol ≤5000ppm

Methanol ≤3000ppm

Chromatographic purity

≤1.0%

Related substances

Any impurity ≤1.0%

Total ≤1.5%

Assay

98.0%~102.0%