Quartz use in Silicon Carbide and Other Abrasives

Silica sand and quartz are used in the manufacture of silicon carbide grains. The sand should for this purpose contain more than 99% SiO2, less than 0.1% each of Fe2O3 and Al2O3, and no lime, magnesia,or phosphorous. Similarly, quartz should contain 99.50 - 99.75% SiO2, 0.04 - 0.05% Al2O3, 0.05 - 0.10% Fe2O3, 1.10% CaO, and MgO.

Our Quartz (Silica) Specifications

• High content of SiO2 99.6% and above.
• Sizes: from 0.08mm to 8.0mm and also 38 microns
• Fe2O3 content: 0.002% or 0.008%
• Al2O3: nil or maximum upto .005%
• No contamination

Quartz Specifications Suitable for Sandpaper/Cloth

• For making this quartz (flint) should have high silica (99%) and low iron content as far as possible.
• The quartz (flint) used for this should have a high silica content (99%) and as little iron as possible.
• typically with the water present to smother dust against the item being polished. The chemical makeup of the sand is less significant for this use than the size frequency distribution and the lack of clay-clogging components.

Specification of Quartz Granules

• Sio2 above 99.6% and above
• Fe2O3: Should be around 0.002-0.008%
• Other trace elements: should be below 0.1%
• No trace elements or contamination like clay, sand, etc.