Appearance- free flowing white powder
Ash content as zno % wt. 13 - 14
Moisture % wt. 0.5 max
Zinc as zn % wt. 10 11
Melting point c 119 - 125
Free fatty acid % wt. 0.50 max
Bulk density typical gm/ml 0.15 - 0.30
Sieve residue on 325 mesh 1 max