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Fused Quartz Block

Writer:World Quartz  Date:


Fused Silica Sand is the choice of a fused quartz block as a raw material, according to different uses, after machining, magnetic separation, cleaning, screening, production into different specifications of granular fused silica sand. Product chemical stability, acid and alkali, high temperature, wear, expansion coefficient, high purity, high insulation characteristics, has had a very low thermal conductivity and electrical conductivity, excellent thermal stability. Yearly production capacity is 5000 tons.
Refractory, ceramic materials and glass materials, epoxy resin casting, electronic sealing material, ideal for the main raw material, light, medical, foundry, and other industries, as well as paints, coatings and other chemical industries filler.
1.   Physical property
Melting point:1700 deg c
Specific gravity: 2.2g/cm2
Mohs Hardness: 6.5
2.   Specification
(1)        Grain size:50mm—0.01mm, 
(2) SiO2>99.90%  Transparency 90%
3.   Packing: 25kg in a plastic woven bag, 40 bags in a ton bag.
4.   Chemical requirements & particle distribution and packing can be made on  request.
Fused Silica Sand
Grain size
2-1mm,1-0.5mm, 0.5-0.2mm, 0.2-0.1mm, 0.1-0.4mm,
Grade    SiO2>99.95%  Transparency: 90%
Fused Silica Powder
Grain size   0.1-0.4mm, 0.4-0.125mm, 0.125-0.076mm
0.076-0.043mm, -0.043mm, -0.03mm, -0.01mm
Grade    SiO2>99.90%  Transparency: 90%
Chemical analysis

Element Fe Al Ca Mg Ti Li Na K Cu B Mn Co NI
PPm 12 50 6 5 8 0.9 3.8 3.5 0.1 0.1 0.2 0.1 0.02
     Fused silica sand as fine particulate matter, it is easy to float in the air & pollute the environment. People work easily with the air into the respiratory tract, respiratory tract and lung damage organs, lungs and other respiratory diseases caused by silica quartz sand dust floating environment, so when a professional job to correctly wear protective masks to avoid doing harm.