... P2O5 in the product is 16% Min.Single Superphosphate (SSP)The single superphosphate is a kind of traditional superior products ... essential components are soluble monocalcium phosphate [(H2PO4)2·H2O] and calcium sulfate [Ca SO4·2H2O]. The available P2O5 in ... free phosphorous acid, calcium, iron, magnesium, silicon, sulfur, etc, and indeed is a phosphate-based multiple-element fertilizer that is ...