Items

Standard

Analysis data

Appearance

White crystal or white crystalline powder

Conforms

Specific Rotation [20/D]

 (C=2 in H2O)

+46.5 to +49.0 Degree

46.2°

Transmittance

Not less than 98.0%

96.5%

Heavy Metals (Pb)

Not more than 10 PPM

<10ppm

Arsenic (As2O3)

Not more than 2 PPM

<2ppm

Loss on Drying

Not more than 0.50%

0.25%

Residue on Ignition

Not more than 0.30%

0.1%

Assay

98.0 to 102.0%

99.2%

pH

2.0 to 3.0

2.3