Silica
Construction quartz sand is quartz stone processed by the crushing of quartz particles. Quartz stone is a non-metallic mineral, a hard, wearable, chemical properties and stability of silicate minerals, the main mineral composition is SiO2. Quartz sand is an important industrial mineral raw materials, non-chemical dangerous goods, widely used in glass, casting, ceramics and fireproof materials, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemical, plastics, rubber, abrasive, filter and other industries.
Items | Unit | Typical testing value |
---|---|---|
L.O.T. | % | 0.1 |
SiO2 | % | >99.5 |
Fe2O3 | % | <0.018 |
Al2O3 | % | 0.36 |
CaO | % | 0.09 |
TiO2 | % | 0.004 |
MgO | % | 0.55 |
K2O | % | 0.02 |
Na2O | % | 0.005 |
Mohs hardness | >8.0 | |
Density | g/cm3 | 2.65 |
PH | 6.5-7.0 | |
Melting point | (C) | 1730 |
50kg/bag ,then 1000kg/bag . 20-25mt/1x20container .
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