Preparation and Occurrence
Cadmium sulfate octohydrate can be prepared by the reaction of cadmium metal or its oxide or hydroxide with dilute sulfuric acid:
- CdO + H2SO4 → CdSO4 + H2O
- Cd + H2SO4 → CdSO4 + H2
The anhydrous material is prepared using sodium persulfate:
- Cd + Na2S2O8 → CdSO4 + Na2SO4
Cadmium sulfate is very rarely found naturally in a form of a tetrahydrate mineral called drobecite and as a basic salt in the mineral Niedermayrite. It is used as a pigment.
Read more about this topic: Cadmium Sulfate
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