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Silica lump (SiO₂) is a high-purity mineral compound known for its exceptional hardness, chemical stability, and thermal resistance. It is widely used in glass manufacturing, ceramics, foundry applications, and semiconductor production. Due to its superior insulating properties and mechanical strength, silica lump plays a vital role in industrial processes, construction materials, and advanced research applications.
Product Overview
Silica (SiO₂), also known as silica stone, is a commonly found inorganic compound with excellent chemical stability and high melting point. It occurs in crystalline form, exhibiting hardness and high-temperature resistance. Silica is widely used in glass manufacturing, electronics, and optical industries. With a density of 2.2 g/cm³ and a melting point of 1723°C, SiO₂ demonstrates strong corrosion resistance and is insoluble in water. It retains its chemical stability under high-temperature and harsh conditions, making it suitable for various high-performance applications.
Features
- High purity (4N-5N), ideal for demanding industrial applications
- Excellent heat resistance, suitable for high-temperature environments
- Good chemical stability, resistant to water and acid reactions
- Lump form, easy to process and apply across multiple fields
Applications
- Glass Manufacturing: Major raw material in the production of glass, quartz glass, and water glass
- Electronics and Optics: Used in the production of optical fibers, electronic components, and optical instruments
- Crafts and Refractory Materials: Widely utilized in the production of high-temperature materials and fine crafts
- Lubricants and Flow Aids: Used as a flow agent and anti-stick agent in pharmaceutical granulation, particularly for oils and pastes
| Element | Measured Value | Standard Value | Unit | Element | Measured Value | Standard Value | Unit | Element | Measured Value | Standard Value | Unit |
| Li | <0.3 | ppm | Zn | Pb | <0.3 | ppm | |||||
| B | 0.2 | ppm | Ga | Bi | |||||||
| F | Ge | Y | |||||||||
| Na | 1.67 | ppm | As | Th | |||||||
| Mg | 0.4 | ppm | Se | Er | |||||||
| Al | 14 | ppm | Zr | Ru | |||||||
| Si | ppm | Nb | Rh | ||||||||
| P | Mo | Os | |||||||||
| Cl | Pd | Cd | |||||||||
| K | 1.49 | ppm | Ag | In | |||||||
| Ca | 1.5 | ppm | Sn | <0.3 | ppm | ||||||
| Ti | Sb | ||||||||||
| V | Ba | ||||||||||
| Cr | <0.3 | ppm | Hf | ||||||||
| Mn | 0.05 | ppm | Ta | C | |||||||
| Fe | 0.8 | ppm | W | S | |||||||
| Co | Pt | O | ppm | ||||||||
| Ni | <0.3 | ppm | Au | N | |||||||
| Cu | 0.01 | ppm | Hg | H |
