Specifications: Sodium Hexametaphosphate SHMP 68%Min (Metaphosphoric acid, hexasodium salt, Hexasodium ) CAS No.: 10124-56-8 Molecular Formula: Na6P6O18 Re: Sodium Hexametaphosphate tech grade Appearance: White power Specification: Total phosphate as P2O5: 68% min Inactive phosphate as P2O5 : 7.5% max Iron: 0.05% max PH value(1% solution) : 5.8-7.3 Water insoluble: 0.05% max Re: Sodium Hexametaphosphate food grade Appearance: White powder Specification: Total phosphate as P2O5: 68% min Inactive phosphate as P2O5 : 7.5% max Iron: 0.05% max PH value(1% solution) : 5.8-6.5 Water insoluble: 0.06% max Heavy metals as Pb: 0.001% max As: 0.0003% max F: 0.003% max 25kg/bag 23MT/20'FCL 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 softening agent in solution for printing, dyeing, and boiler; Diffusant in papermaking; Retarding agent, floating agent, dispersing medium, high temperature agglomerant, detergent and soil analytical chemistry reagent. For food grade, it is mainly used as additive agent, pH adjusting agent and fermentation agent, and nourishment.