Items

Specification

Appearance:

Slight-yellow powder

Melting point:

Not less than 300?

Loss on drying:

Not more than 12%

Residue on ignition:

Not more than 0.5%

Heavy metals:

Not more than 10ppm

Arsenic:

Not more than 1ppm

Bulk density:

0.40-0.50g/cm³

Assay:

Not less than 98.5%