Zinc carbonate

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White odorless powder. Zinc carbonate occurs in nature as the mineral smithsonite and zincspar. It is an astringent and antiseptic. Zinc carbonate is used as a pigment in the manufacture of porcelain, pottery, and rubber.


  • May be harmful if inhaled or ingested.
  • Contact may cause irritation.
  • ThermoFisher: SDS

Physical and Chemical Properties

Soluble in water, dilute acids and alkalis.

Composition ZnCO3
CAS 3486-35-9
Density 4.4 g/ml
Molecular Weight mol. wt. = 125.38

Resources and Citations

  • The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 9931