| ≥1 piece |
White powder; Density 2.484(20℃); Soluble in water but insoluble in organic solvent; SHMP has got strong hygroscopicity and can absorb humidity from the air to become into pasty form; Sodium Hexametaphosphate may form soluble chelates with ions of Ca, Ba, Mg, Cu, Fe etc. and is a good Water Treatment chemical.
| ITEM | STANDARD |
| APPEARANCE | WHITE POWDER OR WHITE GRANULES |
| TOTAL PHOSPHATE (As P2O5) | 68.0% MIN |
| INACTIVE PHOSPHATE(As P2O5) | 7.5% MAX |
| WATER INSOLUBLE MATTER | 0.02% MAX |
| PH VALUE | 5.8-6.5 |
| IRON as Fe | 200PPM MAX |
| THROUGH MESH 60 | 90% MIN |
| ARSENIC( As) | 3PPM MAX |
| TOTAL HEAVY METALS( Pb) | 10PPM MAX |
| FLUORID | 30PPM MAX |
| LEAD | 4PPM MAX |