Density 2.181 Melting point 616 Molecular formula Na6O18P6 Molecular weight 611.770 Accurate mass 611.689636 PSA 387.19000 LogP 3.28080 Appearance properties White granular solid Refractive index 1.482 Storage condition Sodium hempetaphosphate should be stored in a cool, ventilated, dry, clean, non-toxic warehouse. It is strictly prohibited to store and transport with toxic goods. stability Sodium hexametaphosphate is colorless transparent glass flake or white granular crystal. The specific gravity of 2.484 (20), easy to dissolve in air, easy to dissolve in water, 973.2 grams per liter of water at 20, 1744 grams per liter of water at 80, the PH value of 1% solution is about 5.5-6.5, insoluble in organic solvents, in the neutral medium, the final product of hydrolysis is phosphates. Moisture absorption is very strong, dew in the air can gradually absorb water and sticky. It can be combined with alkaline earth metal to form soluble double salt, so it has the function of dissolving scale and is a good one Quality manufacturers, service first, customer first, affordable, we have many other types of chemical products, if you need to contact us