Purity

99.0% - 100.5%

Bulk Density

0.60.9g/ml(Depends   on granulation)

Particle Size

40-80mesh

PH

2.12.6 (10% solution)

Melting Point

About 190°C

Copper

5ppm max

Heavy Metals

10ppm max

Hg

1ppm max

Lead

2ppm max

Iron

2ppm max

Arsenic

3ppm max

Cd

1ppm max

Loss on Drying

0.4% max (under 60°C   temperature)

Oxalic Acid

0.2% max

Sulphate Ash(Residue on Ignition)

0.1% max

Specific Optical Rotation

+20.5~+21.5° [alpha] 20, D, 10% water solution