Optical glass Glass
is known to be obtained from sand, but sand does not fit everyone. The raw materials required for optical glass must have special qualities. First and foremost, it has to be clean. Quartz sand is pure SiO2 silicon dioxide with virtually no impurities. It is this property that allows you to cook glass for optical instruments — telescopes, microscopes and even conventional glasses.
Quartz sand boiled and artifical jewelry crystal. It is suitable for the manufacture of rhinestones.
Quartz sand is also used for the manufacture of colored glass enamels. Such enamels are used in the painting of decorative products made of metal and porcelain. Enamel made of quartz sand has the right degree of transparency, and it can be given any shade. This is done by adding salts of various metals.
Glass enamel is applied to the product before firing.
The basis of modern radio electronics is pure silicon. It is also obtained from quartz sand. They produce silicon by electrolysis of a quartz sand melt.
Because quartz sand is a solid material, it is often used in the form of all kinds of abrasives. Abrasive — grinding or cutting material. Sandcircles, sanddiscs and sandpaper are made of quartz sand. The manufacture of such products became possible because quartz sand has increased hardness. Quartz sand is also used in sandblasts, which clean different surfaces.
Quartz sand is a dielectric and a good heat storage device. Therefore, it is used as a filler for electric heating devices with an electric spiral. They fill the space between the turns of the heating electrical helix and the wall of the heat emitting element.
In recent times, liquid glass has gained great popularity. It is a material that is used in the production of construction and repair works to strengthen foundations, as well as in some cladding and decorative design solutions. Liquid glass is the sodium salt of the silicic acid Na2SiO3. Many are familiar with this composition is silicate adhesive. For bonding paper it is now practically not used, but in the construction of its value has not lost, because it is quite resistant to different influences, both atmospheric and mechanical.