Parameter

Specification

Result

Assay

Min 99.5 %

99.7 %

Appearance

Almost white,

micro-granulated powder

Conforms

Loss on drying

Max. 0.1 %

0.02 %

Residue on ignition

Max. 0.8 %

0.7 %

Melting point

min. 126^oC / max. 131^oC

127^oC

Identification

Positive

Conforms

Heavy metals

max. 20 ppm

Conforms