Appearance Green to greenish brown colour powder with characteristic odor2.0 Solubility Soluble in methanol.3.0 Loss on drying (%)( at 400c for 2hours ) NMT 6.04.0 Bulk density (gmcc)Tap density (gmcc) 0.30 0.600.40 0.705.0 Sieve test (%)40# mesh NLT95.0% passes through 40mesh6.0 Heavy metals (ppm) NMT 10.07.0 Arsenic (ppm) NMT 1.0