Quartz use in Glass Industry

The physical specifications of silica sand specifies that silica sand shall be fairly free from contamination like clay material, pebbles, and other extraneous matter. The sand should not contain more than 4% moisture.

Natural silica sand is the most preferred material in the glass industry, but in some cases where the glass plants are located far away from silica deposits, crushed quartz is also used. For use in the glass industry, the silica sand must be uniform in chemical composition, size, and shape of grains. Uniform grain size, promotes even melting in the glass tank. The sand should not be coarser than 20 or 30 mesh nor finer than 100 to 120 mesh.

Silica sand usually contains small amounts of iron oxide, alumina, chromium, magnesium oxide, calcium oxide, and potassium oxide because it imparts coloration to the glass. The common permissible limits of iron oxide in silica sand for use in the manufacture of different types of glass should be from 0.005 to 0.7% depending upon the grade of glass manufactured.

Our Quartz (Silica) Specifications

• High content of SiO2 99.8% and above.
• Sizes: 30/50, 30/80
• Fe2O3 content: 0.002-0.008%
• Al2O3: nil or maximum up to .05%
• No contamination

Specification of Natural Silica

• high content of SiO2 99%.
• Sizes: 30/50, 30/80
• Fe2O3 content: 0.04%
• Al2O3: nil or maximum upto .005%
• Triple washed
• No contamination

Crystal Quartz for Scientific Equipment

• The use of quartz crystal in scientific equipment is very specific. The quartz used in the manufacture of this equipment is of very high quality and has been carefully selected to meet the specifications required for use in these types of equipment.
• Quartz crystals come in a broad variety of sizes and forms, and their performance characteristics can differ greatly. These parameters include temperature calibration, drive level, load capacitance, series resistance, holder capacitance, motional inductance and capacitance, resonance frequency, and resonance mode

Crystal Quartz Specification

• High content of SiO2 99.9% .
• Fe2O3: below 0.002 %