Molecular formula: ZnCO3.2Zn(OH)2.H2O
Molecular weight: 342.23
Specific gravity: 4.42-4.45
Appearance: white powder
Odor: odorless
Solubility: insoluble in water and alcohol, slightly soluble in ammonia, dissolve in the diluted acid and the sodium hydroxide.
Zinc content counted by dried substances: 58%
Loss of ignition:25%-32%
Sulphate radical:0.3%-0.6%
Low heavy metal
