... HMP, Medi-Calgon, SHMP; SodiumPolyphosphates; Glassy; Sodium Polymetaphosphate;Sodium phosphate glass; Polyphosphoric Acids, sodiumsaltsMolecular weight:611.17 ... , textiles, scale removal and agriculture.Food grade Sodium hexametaphosphate can be used as food additive, quality ... improver, regulator, metal ion chelating agent, adhesive, and nourishment additive. 4.Packing ...