non-toxic, tasteless and environment-safe. It is easy soluble in water.
having strong capacity of cleaning, buffering and softening, counteracting acidic contamination, emulsifying fat and oil, deflocculating to inorganic. It can replace STPP to be used for the manufacture of effective detergents and rust remover for metal, reducing environmental pollution, preventing corrosion for metal (zinc, aluminum, etc.).
Properties | Unit | Standard | Value |
Sodium oxide(Na2O) | % | 28.00-30.00 | 29.14 |
Silica(SiO2) | % | 27.00-29.00 | 28.85 |
Water insoluble | % | ≤0.2 | 0.08 |
Iron(Fe)y | % | ≤200p.p.m | 50p.p.m |
Whiteness |
| ≥80 | 87 |
Bulk Density | g/cc | 0.80-0.97 | 0.95 |
PH of 1.0% Solution |
| 12-13 | 12.65 |
Melting Point | °C | 72.2 | 72.2 |
Particular Siz | mesh | 16-30 | ≥90% |
Sodium metasilicate pentahydrate
