| Customization: | Available |
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| CAS No.: | 7631-86-9 |
| Formula: | Sio2 |
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Precipitated silica is based on water glass (sodium silicate solution) and acid as raw materials, through chemical reaction to produce silicate precipitation, and then through washing, drying and other processes.
The particle size is generally 1 ~ 100 μm, the specific surface area is 40 ~ 300m²/g, and it is a white powder. It is chemically stable.
| Standard item name | Technical requirement | CT-175 | Granule Grade Silica | CT-99L |
| Silica content % | ≥90 | 96.0 | 96.0 | 98.5 (dry basis method) |
| Color % | ≥90 | 92.0 | 92.0 | 93.0 |
| Average particle diameter (mesh) | 100-325 | 40-80 | 100-325 | |
| Specific surface area m2/g | 155-220 | 175-190 | 165-200 | 175-200 |
| PH value | 6.5-7.5 | 6.5-7.0 | 6.5-7.0 | 7.0 |
| Drying reduction % | ≤7 | 4-7 | 4-7 | 4-7 |
| Oil absorption value cm3/g | 1.8-3.3 | 2.4-2.8 | 2.0-2.8 | 2.2-3.0 |
| Burn reduction % | ≤7.0 | <7 | <7 | <7 |
| Sieve residue (45um) | ≤0.5 | <0.5 | <0.5 | <0.5 |
Packaging
25kg/1000kg,plastic woven bag with plastic bag inside,can provide customized services
Store in a dry,ventilated,cool place,away from direct sunlight.
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