Laboratory Preparation and Uses of Zinc Carbonate (ZnCO3)

Zinc carbonate occurs in nature as calamine.

Laboratory Preparation:

When NaHCO3 is added to Zinc sulphate solution, ZnCO3 is obtained.

ZnSO4 + 2NaHCO3 → ZnCO3 + Na2SO4 + H2O + CO2



i) It is used in making ointment for curing skin diseases.

ii) It is used in the preparation of cosmetics.

iii) It is used a pigment for rubber.