The chemical properties of graphite are very stable, high temperature resistance, corrosion resistance, and good conductivity.Therefore, graphite can be used as refractory material, sealing material, conductive material, and is widely used in high temperature metallurgy, sand finding, paint lubricant, pencil lead, pigment, polishing agent, petrochemical industry, synthetic fiber, heater and other industries.
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Silica sand, also known as quartz sand, is composed mainly of silicon dioxide (SiO). It is a naturally occurring mineral that is commonly used in a variety of industries due to its properties like durability, high melting point, and resistance to weathering. Here are some common uses and facts about silica sand:
Common Uses:
Glass Manufacturing: Silica sand is a primary raw material in the production of glass, including container glass, flat glass, and specialty glass.
Construction: It is used in concrete, mortar, and other construction materials, as well as for sandblasting.
Foundries: Silica sand is used in foundry molds and cores for casting metal parts.
Water Filtration: The sand is used in water filtration systems because of its ability to trap contaminants.
Oil & Gas Industry: It is used in hydraulic fracturing (fracking) to prop open fractures in shale rock to extract oil and natural gas.
Sports & Leisure: Silica sand is used in products like sandboxes, golf course bunkers, and artificial turf.
Properties:
Hardness: Silica sand is known for its hardness, typically ranking around 7 on the Mohs scale, which makes it useful for many industrial applications.
Grain Size: The grain size of silica sand varies, with smaller grains being used for things like glass and larger grains being used for sandblasting or filtration.
Color: It can vary in color, from white to tan or even pink, depending on impurities and iron content.