water in water hydrolysis; formation of diimidotrimetaphosphate, then imidotrimetaphosphate, then imidotriphosphate or triphosphate; further hydrolysis of imidotriphosphate and triphosphate forming P2O7(4-), then PO4(3-);;

water in water hydrolysis; formation of diimidotrimetaphosphate, then imidotrimetaphosphate, then imidotriphosphate or triphosphate; further hydrolysis of imidotriphosphate and triphosphate forming P2O7(4-), then PO4(3-);;