silica sol with ammonium
has its advantage without Na+
be used as catalyst and skidproof agent
with bigger specific surface
Characteristics
Silica sol is a kind of colloid which is formed by nm-grade particles SiO2 dispersed in water. With bigger specific surface of SiO2 colloidal particles, silica sol is widely used in precision casting, papermaking, textile and paint industry as inorganic adhensive, and is also used as catalyst and skidproof agent.
Usage
Ammonia stable silica sol is a kind of silica sol with ammonium as its stable agent. For ordinary silica sol, the exist of Na+ is a disadvantage when at high temperature or with the exist of catalyst or when is used directly as catalyst. Thus ammonia stable silica sol has its advantage without Na+, compared with ordinary silica sol.
Technical Data
| Stable equilibrium ion | Ammonium |
| Average dia., nm | 10-20 |
| SiO2 % | 25.0-26.0 |
| PH value | 8.5-10.0 |
| Viscosity(25°C ) mPa.s | ≤ 6.0 |
| Density(25°C) g/cm³ | 1.15-1.17 |
| Na2O% | ≤0.05 |
| Validity time | one year |
Packing
be packed in 25kg, 250kg plastic barrel.
Storage & transportation
keep at 0-40°C , away from exposure and freezing condition. Before using it , to be forbidden to expose silica sol to air.
