Sodium Hexametaphosphate (SHMP) 1,Manufacturer 2,Free sample 3,68%,white powder 4,High quality and competitive price Sodium Hexametaphosphate (SHMP) ... used as a water softening agent in solution for printing,dyeing, and boiler; diffusant in papermaking;slow corrodent, floating agent ... agent, and ourishment.Packing: 25kg/bag, 22MT in the 20 feet container. Sodium Hexametaphosphate-SHMP manufacturer