Properties and test methods |
Unit
| Value |
Specific surface area (BET) |
m2/g |
200 ±25 |
Average primary particle size |
nm |
12 |
Tamped density* acc. to DIN EN ISO 787/11, Aug. 1983 |
g/l |
approx. 50 |
Moisture* 2 hours at 105 °C |
wt.% |
= 1.5 |
Ignition loss 2 hours at 1000 °C based on material dried for 2 hours at 105 °C |
wt.% |
= 1.0 |
pH in 4% dispersion |
|
3.7 - 4.7 |
SiO2 content based on ignited material |
Styrene |
= 99.8% |