Items

Standard

Appearance

White powder

Specific Rotation [20/D]
(C=4 in methanol)

-22.0 to -26.0°

State of Solution (Transmittance)

Not less than 98.0%

Heavy Metals (Pb)

Not more than 20 PPM

Iron (Fe)

Not more than 10ppm

Arsenic (As2O3)

Not more than 2 PPM

Chloride (Cl)

Not more than 0.020%

Loss on Drying

Not more than 0.35%

Residue on Ignition

Not more than 0.2%

Assay

98.0% to 102.0%