data sheets qk500
Typical Physical Properties
| product |
qk-500 |
| true density g/cc |
0.89 |
| density g/cc |
0.38 |
| crush strength psi |
2000 |
| D10 microns |
45 |
| D50 microns |
300 |
| D90 microns |
480 |
| top effective size microns |
500 |
| floating ratio |
95% |
| thermal conductivity W/mK |
1.1 |
| oil obsorption g/cc |
0.8 |
| hardness Moh's scale |
6 |
| pH Value |
6-8 |
| melting point |
1300 degree C |
| color |
light gray |
| Looks like |
free flowing powder |
* WhH=hunter Lab index
Typical Chemical Composition
| Chemical name |
typical value |
| SiO2 |
60% |
| Al2O3 |
30% |
| Fe2O3 |
3-5.5% |
| CaO |
1.1% |
| TiO2 |
1.05% |
| MgO |
0.8% |
| K2O |
1.12% |
| Na2O |
0.5% |
| loss on ignition |
0.5% |
|
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