Chemical Formula：
SiO₂ (silicon dioxide)
Molecular Weight：
60.08 g/mol (calculated as SiO₂)
Implementation Compliance：
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General Industrial Applications: DB34/T 1056-2009 "Quartz Sand"
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High Purity Requirements: DB43/T 1167-2016 (SiO₂ ≥ 99.997%)
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Photovoltaic Only: GB/T 32649-2016
Product Overview：
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Appearance: Milky white or colorless translucent particles
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Mohs Hardness: 7
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Density: 2.2–2.66 g/cm³
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Melting Point: 1610–1750 ℃
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Solubility: Insoluble in acid (except hydrofluoric acid)
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Properties: High temperature resistant
Applications：
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Glass Industry: Raw materials for flat panel and photovoltaic glass (accounting for over 40% of total)
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Foundry/Metallurgy: Molding sand, refractory materials, ferrosilicon smelting
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Environmental Protection: Water treatment filter media, waste gas adsorption
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High-End Applications: Semiconductors, optical fibers, aerospace materials
Packaging & Storage：
Packaging: 25 kg woven bag or ton bag (moisture-proof lining)
Storage Conditions: Store in a dry and ventilated place, avoiding contact with acid and alkali.