Item

Standard

1. Characteristics

White or almost white, crystalline powder. Very slightly soluble in water, soluble in acetone, sparingly soluble in ethanol (96 percent). It dissolves in dilute solutions of alkali hydroxides.

2. Identification

First Identification: B

Second Identification: A,C,D

3. Acidity or alkalinity

≤0.4ml

4. Related Substances

Impurities A ≤ 0.5%

Impurities B ≤ 0.5%

Impurities C ≤ 0.5%

Total Impurities ≤ 1%

5. Chlorides

≤ 100ppm

6. Loss on drying

≤ 0.5%

7. Sulphated ash

≤ 0.1%

8. Assay

(on dried substance)

98.0-102.0%