Application:
Silicon rubber: Improve anti-aging property and resilience Plastic industry: Can improve the flexibility, strength and water resistance of plastics. Coatings: Enhance anti-caking property; Has thickening and extinction property. Pharmacy: Has thickening, suspending function; As carrier; As anti-caking agent.
| NO. |
Items |
Specifications |
| 1. |
SiO2 content, dry basis, % |
98% min |
| 2. |
Whiteness, % |
100 min |
| 3. |
Particle Size, μ m |
24.0-32.0 μ m |
| 4. |
PH value |
6.7-7.1 |
| 5. |
105° C. 2h (105° C drying loss, %) |
4.0-7.0% max |
| 6. |
1000° C. 2h (Loss on ignition, %) |
7.0% max |
| 7. |
BET (specific surface area, m2/g) |
170-230 m2/g |
| 8. |
DBP absorption value |
2.10-2.50 cm³ /g |
| 9. |
Na2SiO4 |
0.8% |
| 10. |
SO42- content, % |
0.5 max |
| 11. |
Total iron content, mg/kg |
300 max |
Audited Supplier 
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