How does sulphuric acid occur in nature?
Sulphuric acid occurs in nature in two states:
1. In the free state: it is found in some of the thermal springs (sulphur springs).
2. In the combined state: It is found as a metal sulphate. The table given below lists some naturally occurring sulphates with their corresponding common names and chemical formulae:
Chemical name | Common name | Chemical formula |
Aluminium sulphate | Alum | K2SO4Al2(SO4)3.24H2O |
Magnesium sulphate | Kieserite | MgSO4.H2O |
Calcium sulphate | Gypsum | CaSO4.2H2O |
Barium sulphate | Baryte | BaSO4 |