as produced (moist, not milled)
Chemical and physical properties:
| chemical analysis | unit | typical | |
| moisture (110 °C) | % | 35 | |
| referring to dry product (110 °C): | |||
| loss on ignition | % | 8,5 | |
| SiO2 | % | 81 | |
| MgO | % | 6,8 | |
| CaO | % | 0,6 | |
| Al2O3 | % | 0,8 | |
| Fe2O3 | % | 1,3 | |
| Cr2O3 | % | 1,3 | |
| MnO | % | 0,02 | |
| NiO | % | 0,1 | |
| Cl– | % | 0,9 |
| other characteristics | |||
| specific surface area | m2/g | > 150 | |
| bulk density | kg/l | 0,9 | |
| grain size: | |||
| < 0,063 mm | % | ca 1 | |
| > 1,0 mm | % | < 1 | |
| d50 | mm | ca 0,2 |
All information is given on the basis of measured figures which have been determined during long production periods and according
to normal analytical practice or to own standards of the producer (our supplier), respectively. However, further developments and
adaptations of products according to the requirements of customers may result in changes of the above figures.