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Silica sand
A kind of good - hardness chemicalperformance and goodsilica mineral, its main chemical composition is SiO2 and its melting point is 1750℃. It is often divided into :ordinary silica sand ,refined silica sand ,high-purity silica sand,fused sand and silicon micro powder etc.
Chemical composition
|
Chemical analysis | Specification | 10-20 mesh | 20-40 mesh | 40-80 mesh | 60-100 mesh |
| SiO2 (%) | 99.95 | 99.95 | 99.95 | 99.95 | |
| Al (ppm) | 30 | 30 | 30 | 40 | |
| Fe (ppm) | 3 | 3 | 3 | 5 | |
| Ca (ppm) | 1 | 1.5 | 3 | 5 |
Size available
Commonly used specification :
0.5-1.0mm 0.6-1.2mm 1-2mm 2-4mm 4-8mm 8-16mm 16-32mm
Other special size could be supplied as required.
Applications :
Widely used to make optical glass
Refractory materials
Smelting silicon
Grinding materials,castings , ceramic metallurgy, foundry and abrasives etc.
Silica Sand Widely Used For Producing Optical Glass
