precipitated grade
White
Powder
Leather
Leather
Rubber
SGS, Ciq, ISO9001:2008
Yuejiang
25kg/Bag
first class
China
3206111000
Product Description
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.
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 |
