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Qmin-SIL Series Fused Silica
is made of highest purity Chinese crystal Silica by
electrically fusing (fusing temperature 1800-2000℃)to
amorophos Silicon dioxide , then specially engineered
ingots, granular and flour form designed for different
usage. This product has a very low thermal conductivity
and excellent thermal shock resistance.
 Special
Features:
- Near zero thermal expansion
coefficient
- Excellent thermal shock resistance
- Pure(high SiO2 content,low
Iron, Potassium & Sodium Oxide)
- Consistent Chemistry
- Statistically controlled particle
size distribution
Main Applications:
- EMC (Epoxy Molding Compound)
- Investment Casting ,shell
mould product
- Refractory & Ceramic materials
- Paint
- Others
 
Chemical Composition:
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Item
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Ingot
& Granule
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Powder |
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SiO2
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99.9%
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99.8% |
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AL2O3
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40ppm
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500ppm |
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Fe2O3
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40ppm
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50ppm |
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Na2O
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40ppm
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50ppm |
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K2O
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40ppm
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50ppm |
Physical Properties:
- Appearance: Transparent Ingots,
Granule or White Powder
- Specific Gravity: 2.21
- Hardness( Mohs): 7.0
- PH: 5-7
- Whiteness: 95Min.
Size Available: (Ingot, Granules
and powder):
(1) 3-10mm, 10-50mm, 8-5mm,
5-3mm, 3-1mm, 1-0.5mm, 1-0.2mm,0-0.5mm, 0.5-0.2mm,
0.5-0.1mm, 0.2-0.1mm, 0.5-1mm.
(2) -4+10mesh, -10+20mesh, -20+50mesh, -30+50mesh,-50+100mesh,
-120F,
-200F, -325F, -400F, -600F.
Please contact us to inquiry
for more about products particles size distribution,
and chemical composition.
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