Product Type and Technical Indicators of Silica 1
Soles, tyres, adhesive tapes, rubber sheets, rubber tubes, hotwater bags, rubber-covered rolls,wear-resistant sundries, as well as pesticide and feed industry.
Executive standard: HG/T3061
| Index | Technical Requirements | ||||||
| BET surface area ,m2/g | 160- 180 | 160- 180 | 160- 180 | 160- 180 | 185-205 | 90-120 | 90-120 |
| Silica content (dry goods), % | ≥96.5 | ≥96.5 | ≥96.5 | ≥96.5 | ≥96.5 | ≥96.5 | ≥96.5 |
| Heating loss, % | 5.0-8.0 | 5.0-8.0 | 6.0-8.0 | 6.0-8.0 | 6.0-8.0 | 5.5-7.5 | 5.5-7.5 |
| Loss on ignition (dry goods) % | 4.0-6.0 | 4.0-6.0 | 4.0-6.0 | 4.0-6.0 | 4.0-6.0 | 4.0-6.0 | 4.0-6.0 |
| pH value | 6.0-7.5 | 6.0-7.5 | 6.0-7.5 | 6.0-7.5 | 6.0-7.5 | 6.0-7.5 | 6.0-7.5 |
| DBP absorption value, cm3/g | 2.2-2.7 | 2.2-2.7 | 2.2-2.7 | 2.2-2.7 | 2.0-2.7 | 1.8-2.4 | 1.8-2.4 |
| Sulfate content, % | ≤1.7 | ≤1.7 | ≤1.7 | ≤1.7 | ≤1.7 | ≤1.7 | ≤1.7 |
| Total iron content, mg/kg | ≤500 | ≤1000 | ≤500 | ≤1000 | ≤500 | ≤500 | ≤1000 |
| Product appearance | White powder、granular | ||||||
Applications: Soles, tyres, adhesive tapes, rubber sheets, rubber tubes, hotwater bags, rubber-covered rolls,wear-resistant sundries, as well as pesticide and feed industry.
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