Item

Specification

Appearance

White crystalline powder

Assay (%)

99.0 ～ 101.0

Transmittance (%)

≥ 98.0

pH

5.0～6.0 (10% H₂O)

Specific rotation ( °)[α]_D20

+23.5±1.0(5.5g/100ml,6N HCl)

Loss on Drying (%)

≤ 0.2

Residue on ignition (%)

≤ 0.10

Heavy Metals(as Pb) (ppm)

≤ 10

As(ppm)

≤ 1