Ca3(PO4)2 + H2SO4 → Ca(H2PO4)2 + 2CaSO4
In this reaction, calcium phosphate (Ca3(PO4)2) reacts with sulfuric acid (H2SO4) to form monocalcium phosphate (Ca(H2PO4)2) and calcium sulfate (CaSO4). Monocalcium phosphate is the primary component of superphosphate fertilizer.
