1. Sodium Hexametaphosphate 2. oil field, paper making, textile, printing dyeing, petrochemical, leather & building 3. quality Whole Name:Sodium Hexameta Phosphate ... , specific gravity:2.484(20),easily soluble in water, insoluble in organic solvents. [Executive standard]: HG/T 2837 ... 0.001Water insoluble %≤0.050.06 [Use]: Used in the industries including oil field, paper making, textile, printing ...