Silica Gel is conventional desiccant, available in porous, granular, and amorphous form chemical reaction between Sulfuric acid and Sodium Silicate. The internal structure of Silica Gel is composed of a vast network of interconnected microscopic pores which attract and hold water, alcohol, hydrocarbons, and other chemicals by the phenomena known as physical adsorption and capillary condensation. Except for the blue indicated gel contains of cobalt chloride, the white silica gel can consider as a food grade products. It generally uses for various products such as auto/spare parts, electrical appliances, electronics, food packing, furniture, footwear, pharmaceutical and nutraceutical, etc.
Trade Name: Silica Gel
Chemical Family: Sodium Silicate
Chemical Name: Synthetic Silica Gel
Chemical Formula: SiO2+H2O+CoCI2
Chemical Data
| Compound | SiO2 | Fe2O3 | Al2O3 | TiO2 | CaO | ZrO2 | Na2O | Lg.Loss |
| Content (%) | 99.71 | 0.03 | 0.10 | 0.09 | 0.01 | 0.02 | 0.02 | 0.02 |
| Relative Humidity | Absorbing Ability |
|---|---|
| 20% | 15% |
| 50% | 25% |
| 90% | 35% |
Physical Data
| Melting Point °F>2900 | Solubility In Water |
| Melting Point °C>190 | Percent Vaporizes by Weight <10% at 175°F |
| Appearance | Blue and Semi-transparent bead |
| Solubility In Water | Insoluble |