Sillikolloid P 87 offers lowest sedimentation and finer particle size distribution.
- excellent mixing and dispersion properties
- very low sedimentation
- easily re-dispersible
- good wettability
- good substance stability
- grinding aid
- high purity
| Product characteristics | Unit | Testing method | SILLIKOLLOID P 87 |
|---|---|---|---|
|
Color values L*
Color values a*
Color values b*
|
acc. to CIELAB |
94.5
0.9
9.0
|
|
|
Particle size D50
Particle size D97
|
µm | acc. to ISO 13320-1 |
1.5
6.5
|
|
Residue > 40 µm
|
mg/kg | acc. to DIN EN ISO 787 part 18 |
20
|
| Volatile matter at 105 °C | % | acc. to DIN EN ISO 787 part 2 | 0.5 |
| Electrical conductivity | µS/cm | acc. to DIN EN ISO 787 part 14 | 80 |
| pH Value | acc. to DIN EN ISO 787 part 9 | 8.7 | |
|
Density
Bulk density
Tamped density
|
g/cm³ |
acc. to DIN EN ISO 787 part 10
acc. to DIN ISO 903-1976
acc. to DIN EN ISO 787 part 11
|
2.6
0.25
0.40
|
|
Spec. Surface area (BET)
Oil absorption
|
m²/g
g/100 g
|
acc. to DIN ISO 9277
acc. to DIN EN ISO 787 part 5
|
14
55
|
|
Hardness silica/kaolinite
Abrasivity
|
mg |
acc. to Mohs
acc. to Einlehner
|
7/2.5
25
|
| Refractive index n | sin α / sin β | 1.55 | |
|
Water solubility
Acid solubility
|
% |
acc. to DIN EN ISO 787 part 3
acc. to DIN 53770 (0,1 N HCL)
|
< 0.5
< 1
|
|
Chemical Analysis:
SiO2
Al2O3
Fe2O3
|
% | acc. to DIN 51001 (RFA) |
80
14
< 1
|
|
Mineralogical Composition:
Neuburg silica
Kaolinite
Other minerals
|
% | Based on X-ray diffraction pattern analysis combined with Rietveld |
55
30
5
|
