Items                         

Specifications

Results

Characters

White or almost white, crystalline powder, colorless crystals or granules. Odorless, has a strongly acid taste. Very soluble in water,freely soluble in ethanol

Conform

Identification

Meet the standard

Conform

Appearance of solution

Meet the standard

Conform

Assay

99.5-100.5%

99.9%

Sulphate

Max 150 mg/kg

Max 10 mg/kg

Oxalate

Max 100 mg/kg

Max 10 mg/kg

Lead

Max 0.5 mg/kg

Max 1 mg/kg

Sulphated ash

Max 0.05%

0.02%

Loss on drying

Max 7.5-8.8%

8.6%

Readily carbonizable

Substances

Meet the standard

Conform

As

Max 1 mg/kg

Conform

Mercury

Max 1 mg/kg

Conform

Aluminium

Max 0. /kg

Conform

Bacterial endotoxin

Max 0.5 IU/mg

Conform

Heavy Metals(as Pb)

Max 10 mg/kg

Conform