Item | Industrial Grade | |
First Class Product | Qualified Product | |
P205 | ≥68.0% | 65.0% |
P2O5i | ≤7.5% | 10.0 |
Water insoluble | ≤0.05% | 0.15 |
Fe | ≤0.05% | 0.20 |
PH (10g/L water solution) | 5.8-7.3 | |
Appearance | White powder crystal | |
Density | 2.181g/cm3 | |
Melting point | 616ºC | |
Refractive index | 1.482 | |
Solubility | Easily soluble in water, insoluble in organic solvents | |
Package | Film bag packing, the net weight is 25 kilos per bag |
Specialty of Sodium Hexametaphosphate Colorless transparent glass or white particles , melting point at 616 ºC( decomposition ), soluble in water , insoluble in organic solvents . The moisture absorption is strong , the exposed air can absorb moisture gradually and become a viscose Usage Soft water agent, Corrosion inhibitor, dispersant. Metal surface treating agent, detergent auxiliary, cement hardening accelerator. |