Product Name: Sodium metaphosphate Synonyms: SODIUM POLYPHOSPHATES;SODIUM POLYPHOSPHATES GLASSY;SODIUM POLYMETAPHOSPHATE;SHMP;HEXASODIUM METAPHOSPHATE;GRAHAM'S SALT;CALGON;calgon(old) CAS: 10124-56-8 MF: 6Na.O18P6 MW: 611.77 EINECS: 233-343-1 Product Categories: INORGANIC & ORGANIC CHEMICALS;Inorganics;Inorganic Chemicals;Water Ttreatment Chemicals mp 616℃ density 2.181 FEMA 3027 refractive index 1.482 Stability: Stable. Keep dry. Chemical Properties white granular solid Usage For industrial use, such as oil field, paper-making, textile, dyeing, petrochemical industry,tanning industry, metallurgical industry and building material industry, It is mainly used as a water sortening agent in solution for printing, dyeing ,and boiler; Diffusant in papermersing medium, high temperature agglomerant,detergent and soil analytical chemistry reagent .