Items

Specifications

Assay(Dry basis)

≥ 98.5%

Specific Rotation(α)D20

(+)18.0o~(+)21.5o

Loss on Drying

≤ 1.0%

Residue on Ignition

≤ 0.3%

Ammonium salt

 ≤ 0.04%

Heavy metal(As Pb)

   ≤ 0.003%

Arsenic(as As)

    ≤ 0.0002%