Item

Standard

Result

Appearance

White powder

Conform

Content

99.5%~100.5%

99.8%

Identification

A,B,C,D

Conform

Appearance of solution

Comply with the standard

Conform

Alkali hydroxides and

bicarbonates

Comply with the standard

Conform

Chlorides

0.0125% max

0.01%

Sulphates

0.0005% max

0.0003%

Arsenic

0.0005% max

0.0004%

Iron

0.005% max

0.002%

Heavy metals

0.005% max

0.003%

Loss on drying

1.0% max

0.6%

Conclusion

The above product complies with Pharmaceutical Grade