Name:Sodium Hexametaphosphate(Sodium Polyphosphates, Glassy; Sodium Tetrapolyphosphate; Graham’s Salt)Abbreviation:SHMPMolecular formula:(NaPO3)6(Mr≈611.77)CAS No.: 10124-56-8Character:crystal glass or powderPacking:23MT/20'FCLUse: Soften water, paper-making, metallurgy