Silicon Dioxide For Ordinary Rubber Products
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:&…