A phosphate is an inorganic chemical and a salt of phosphoric acid. A phosphate or organophosphate is an ester of phosphoric acid and is presented by the symbol PO3^-4. The phosphate ion is a polyatomic particle with the experimental equation PO3−4 and a molar mass of 94.97 g/mol. It comprises of one focal phosphorus iota encompassed by four oxygen iotas in a tetrahedral course of action.