Tech. grade: 1) Total phosphate (as P2O5): 68% min. 2) Inactive phosphate (as P2O5): 7.5% max. 3) Solubility: pass 4) Insoluble matter in water: 0.05% max. 5) Iron (Fe): 0.05% max. 6) pH value: 5.8 - 7.0 7) Heavy metals (as Pb): 0.001% max.
Application: Used in industries of oil fields, paper production, textile, dyeing, petroleum, chemistry, metallurgy and construction materials etc. as water softener, flotation selecting agent, disperser and high temperature adhesive.