Appearance

White or almost white crystalline powder

Conforms

Assay

98.5%-101.5%

98.6%

PH

5.5-7.0

6.2%

Specific rotation

+14.9°~+17.3°

+16.8°

Loss on drying

≤0.20%

0.20%

Residue on ignition

≤0.40%

0.39%

Chloride (Cl)

≤500ppm

<500 ppm

Sulfate (SO4)

≤300ppm

<300 ppm

Iron (Fe)

≤30ppm

<30ppm

Arsenic (As)

≤3ppm

<3ppm

Heavy metals

≤15ppm

<15ppm

Packing

    25kg fiber drum