Items

Specification

Appearance:

White crystalline powder

Identification:

A.      Infrared Absorption

B.      Meets the requirement

Melting point:

137 to 142 Celsius degree

pH value :

2.0 to 3.0

Loss on drying:

Not more than 1.0%

Residue on ignition:

Not more than 0.10%

Chromatographic purity:

Meets the requirements

Heavy metals:

Not more than 20ppm

Assay:

Not less than 98.5%