| Classification: | Silicon Dioxide |
|---|---|
| CAS No.: | 7631-86-9 |
| Other Names: | precipitated silica |
| MF: | SiO2 |
| EINECS No.: | |
| Place of Origin: | China (Mainland) |
| Grade Standard: | Agriculture Grade,Industrial Grade |
| Purity: | 99 |
| Appearance: | white powder |
| Application: | silicon rubber,high grade rubber |
| Brand Name: | DX |
| Model Number: | DX-S50 |
| particle size: | 5-15um |
Quick Details
Specifications
Silastic/Silicon rubber /high grade rubber grade nano-silicon dioxide
ITEMS | DX-50 | DX-60 | DX-60D |
Form | White powder | White powder | White powder |
Whiteness | 98 | 98 | 98 |
SiO2 (dry basis) % | ≥98 | ≥98 | ≥98 |
PH value | 6.5-7.5 | 6.5-7.5 | 6.5-7.5 |
Bulk density g/l | 100-120 | 95-115 | 120-140 |
BET surface area m2/g | 60-80 | 220-260 | 220-260 |
DBP absorption value ml/100g | 240-280 | 280-320 | 280-320 |
Average particle size um | 5-8 | 10-15 | 10-15 |
Sieve residue (45um) % | <0.05 | <0.05 | <0.05 |
Heating loss (105 for 2hr.) % | 4.0-6.0 | 4.0-6.0 | 4.0-6.0 |
Ignition loss (1000 for 2hr.) %% | 4.0-8.0 | 4.0-8.0 | 4.0-8.0 |
Fe mg/kg | ≤149 | ≤149 | ≤149 |
Soluble salt (Na2SO4) % | ≤0.4 | ≤0.4 | ≤0.4 |
package | 10kg/bag | 10kg/bag | 12.5kg/bag |
Characters:
This product can make rubber stronger and enhance the flexibility and anti-abrasion of vulcanized rubber greatly, so that the rubber use reduced and cost lowed. It has stronger appetency, which make it effect greate disperse ability. The physical character effected by the particle of white carbon and molecule of rubber is better than that of carbon black in the aspect of improve vulcanized rubber's machine intensity and tear enhancing.
DX-50 special use for silicon rubber industry.