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NH4+-stabilizer colloidal silica
There are five types of NH4+-stabilizer including NS-10, NS-15, NS-20, NS-25 and NS-30.Their standards are:
| Designation | Model and Standard | ||||
| NS-10 | NS-15 | NS-20 | NS-25 | NS-30 | |
| Appearance | Slight milky transparent to translucent liquid | ||||
| SiO2 | 10±1% | 15±1% | 20±1% | 25±1% | 30±1% |
| Na2O (wt%) | ≤0.1% | ||||
| PH (20°C) | 8.5-10.0 | ||||
|
Density (20°C，g/cm3) |
1.06-1.08 | 1.08-1.10 | 1.12-1.14 | 1.15-1.17 | 1.19-1.21 |
| Viscosity (20°C，mPa•S) | ≤10 | ||||
| Particle size (nm) | 8-15 | ||||
| Stability | One year | ||||
