- Product Description:
Product Name: Colloidal Silica
CAS No.: 7631-86-9
Other Names: Silica Sol
Molecular Formula: mSiO2 nH2O
EINECS No.:231-545-4
- Product Characteristics:
This product is alkaline sodium silica sol, which is made through silica powder hydrolysis method, and the average particle size range of the titration method inspect is 8-15nm. The scope of each indicator can be refined and customized according to the actual usage requirements of customers. And slight blue,has high clarity,have no effect on the color of covering.It has large specific surface area.When the water evaporates, the nano-silica particles can be firmly attached to the surface of the object and form a combination of silica oxygen bond. The structure is compact, high purity, uniform distribution and good stability. Low viscosity, good dispersion and permeability; It has good hydrophilic and hydrophobic properties.
- Product Technical Data:
| Item | Index | |||
| JN-20 | JN-25 | JN-30 | JN-40 | |
| SiO2,% | 20.0-20.1 | 25.0-26.0 | 30.0-31.0 | 40.0-41.0 |
| Na2O,% ≤ | 0.3 | 0.3 | 0.4 | 0.4 |
| PH value | 8.5-10.0 | 8.5-10.0 | 8.5-10.0 | 9.0-10.5 |
| Viscosity(25°C),mPa.s≤ | 5 | 6 | 7 | 25 |
| Density(25°C),g/cm³ | 1.12-1.14 | 1.15-1.17 | 1.19-1.21 | 1.28-1.30 |
| Average particle diameter,nm | 10-20 | 10-20 | 10-20 | 10-20 |
- Product Applications:
It can be used in construction,(improve the strength of the building structure, earthquake resistance, etc.) precision casting, refractory, colloidal battery, textile, paper making, ceramics polishing, painting, coating, catalyst carrier, etc.
- Product Packing & Storage:
- Packaging: 25KG drum, 250KG drum, 1000KG IBC drum, 16-20 ton flexibag.
- Prevent damage in the transportation;Prevent exposure and freezing, the best storage and transportation temperature is 0~40 degrees;Prevent entry of dust and other impurities;