Silica
Chemical Name: Silica
Formula: SiO2
Formula: SiO2
|
Name of index |
FCC |
| Assay （SiO2） |
≧94.0%
|
| As |
≤0.0003%
|
| Heavy metals (as Pb) |
≤0.003%
|
| Loss on drying |
≤7.0%
|
| Loss on ignition |
≤8.5%
|
| Sulifate (as Na2SO4) |
≤5%
|
| Screen residue （325 MESH） |
≤5%
|
| PH volume |
6.0---7.5
|
| Conclusion |
The specification conforms with FCC--1983
|
.