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Fused Quartz Silica Powder
Fused quartz powder Keywords: fused quartz powder, fused quartz powder , fused silica high-purity quartz powder ,refractory fused quartz powder for precision casting offused quartz powder ,ceramic materials fused the the quartz powder, fused quartz Silica sand manufacturer, fused quartz powder suppliers, fused quartz powder production process, physical and chemical properties of fused quartz powder
Fused quartz powder Introduction:
Fused quartz powder, fused quartz powder (Fused silica) is through Donghai Colorful mineral company selection of the Donghai local quality natural quartz, high temperature melting ,melting fused amorphous silica ,cooling after sorting micronized broken, the smelting transparent quartz material as the main raw material, processed from our standard production process.
Fused quartz powder, fused silica powder of high purity, with a coefficient of thermal expansion, low internal stress, low-level radioactive and other fine features.
And having the following characteristics: low coefficient of linear expansion; good electromagnetic radiation; corrosion resistance, chemical stability of the chemical characteristics; reasonably orderly, controlled particle size distribution.
This product is mainly used in electronic packaging, investment casting, high-grade electrical insulation, paint and coatings, silicone rubber, refractory ,fire resistant and other industries.
Second, fused quartz powder main technical performance indicators
|
Chemical Composition |
Specification Mesh(mm) |
|
|
SiO2% |
≥99.80 |
300~5000mesh |
|
Fe2O3% |
≤0.010 |
|
|
Al2O3% |
≤0.10 |
|
|
Water Content% |
≤0.08 |
|
|
Lossin Ignition% |
≤0.10 |
|
|
Na+ppm |
≤2 |
|
|
Cl-ppm |
≤2 |
|
|
Fe2+.3+ppm |
≤5 |
|
|
Ec Electric Conductivity μs/cm |
≤3 |
|
|
|
|
|
|
Physical Properties |
||
|
Crystalline Status |
Amorphous |
|
|
Melting Point℃ |
1713 |
|
|
Boiling Point℃ |
2230 |
|
|
Density,g/cm |
2.20 |
|
|
Mohs Hardness |
6 |
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