Property:

Color is milky white or colorless translucent, hardness 7, brittle no cleavage, shell fracture, grease luster, relative density of 2.65, its chemical, thermal and mechanical properties have obvious anisotropy, insoluble in acid, slightly soluble in KOH solution, melting point 1750℃. The color is milky white, light yellow, brown and gray, silica sand has high fire resistance.

Usage:

1. the main raw materials of flat glass, float glass, glass products (glass jars, glass bottles, glass tubes, etc.), optical glass, glass fiber, glass instruments, conductive glass, glass cloth and special anti-ray glass

2. porcelain embryo and glaze, kiln with high silicon bricks, ordinary silicon bricks and silicon carbide and other raw materials.

3. silicon metal, ferrosilicon alloy and silicon aluminum alloy and other raw materials or additives, fluxes

4. concrete, cementitious materials, road building materials, artificial marble, cement physical properties test materials (i.e., cement standard sand), etc

5. silicon compounds and water glass and other raw materials, sulfuric acid tower filler, amorphous silica powder

6, the main raw materials of casting sand, grinding materials (sandblasting, hard grinding paper, sandpaper, emery cloth, etc.)

7. high purity metal silicon, communication optical fiber, etc

8. fillers (can improve wear resistance)

9. its internal molecular chain structure, crystal shape and lattice change law, and has high temperature resistance, small thermal expansion coefficient, corrosion resistance, high insulation, piezoelectric effect, resonance effect and its unique optical characteristics.

Quartz sand is processed by crushing quartz grains of quartz, quartz stone is a non-metallic minerals, is a hard, stable wear and chemical properties of silicate minerals, the main mineral component of SiO2, quartz sand The color is white or colorless, translucent, Mohs hardness of 7, quartz sand is an important industrial mineral raw materials, non-hazardous chemicals, widely used in glass, foundry, ceramics and refractories, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemicals, plastics, rubber, abrasive, media and other industries.

Ordinary quartz sand, which SiO2≥90-99% Fe2O3≤0.06-0.02%, refractoriness 1750 ℃, the appearance of some large particles, the surface of yellow cysts. Ordinary quartz sand is generally made from natural quartz ore, by crushing, washing, drying, secondary screening of a water treatment filter; the filter has: no impurities, no school angle, high density, high mechanical strength, pollution load capacity of the line using a long period, is the ideal material for chemical water treatment. Size range 5-220, user requirements particle production. Main purpose: metallurgy, Mexico silicon carbide, glass and glass products, ceramic, steel, water filtration, sodium silicate, chemicals, spraying noisy industries.

Refining quartz sand, quartz sand, also known as pickling, SiO2≥99-99.5% Fe2O3≤0.005%, using high-quality natural quartz sand, mortar.

High purity quartz sand, SiO2≥99.5-99.9% Fe2O3≤0.001%, using high-quality natural quartz stone, mortar. (Mm for millimeters)

Fused silica sand, chemical composition: SiO2 99.9-99.95% Fe2O3 5PPM-25PPM max Li2O 1-2PPM max Al2O3 20-30PPM max

K2O 20-25PPM max Na2O 10-20PPM max (PPM for the millionth unit) Physical properties:

Colorless transparent block, granules or as a white powder.

The relative weight: 2.21;

Mohs hardness: 7.0;

PH: 6.0;