Sodium Hexametaphosphate 1.Chemical formula:(NaPO3)6 2.Standard: HG/T2837-1997;GB1890-89 ... cooling water treatment of power plants, railway vehicles, boilers and chemical fertilizer plants, promoter of detergents, control or anticorrosive reagents, cement ... , Mg, Cu, Fe etc. and is a good water treatment chemical. Technical Data tech gradeAppearanceWhite powderP2O568%MINNon-active phosphate7.5%MAXFe0 ...