The main component of glass

The main composition of glassware depends on its type and use. Here are some common glassware and their main ingredients:
Borosilicate glass: mainly composed of boric acid and silica, with high heat resistance, high chemical resistance and low coefficient of linear expansion 4.
Quartz glass: The main component is silica, with high purity, high light transmission and high heat resistance. It is widely used in optoelectronics, semiconductors, electronics and chemistry.
Sodium-calcium glass: refined from quartz, sodium carbonate and calcium carbonate and other raw materials, poor heat and chemical resistance, but more affordable and easy to process4.
Ordinary glass: the main chemical composition is silica and alumina, calcium oxide, magnesium oxide, sodium oxide, potassium oxide 12.

The main component of the glass is silicate, including Na2SiO3, CaSiO3, SiO2 and so on.
Ordinary glass is mainly silicate [Na2SiO3, CaSiO3, SiO2 or Na2O·CaO·6SiO2], only pure quartz glass [optical fiber] composition only silica (SiO2). There are many glass fibers in addition to light conduction, such as electronic fibers, high modulus fibers, chemical resistant fibers, etc. Main: tempered glass (the same composition as ordinary glass) potassium glass (K2O, CaO, SiO2) borate glass (SiO2, B2O3) colored glass (ordinary glass manufacturing process to add some metal oxides. Cu2O -- red; CuO - blue green; CdO - shallow **; CO2O3 -- blue; Ni2O3 - dark green; MnO2 -- purple; Colloidal Au -- red; Colloide Ag -- **) color-changing glass (high-grade colored glass with oxides of rare earth elements as colorants) Optical glass (adding a small amount of light-sensitive substances, such as AgCl, AgBr, etc., to ordinary borosilicate glass raw materials, and then adding a very small amount of sensitizing agents, such as CuO, etc.) Make the glass more sensitive to light) Rainbow glass (made of adding a large amount of fluoride, a small amount of sensitizer and bromide in the ordinary glass raw materials) protective glass (adding appropriate auxiliary materials in the ordinary glass manufacturing process, so that it has the function of preventing strong light, strong heat or radiation through and protecting personal safety. Such as gray - dichromate, iron oxide absorbs ultraviolet light and part of visible light; Blue-green - nickel and ferrous oxide absorb infrared and some visible light; Lead glass - lead oxide absorbs X-rays and r rays; Dark blue - dichromate, ferrous oxide, and iron oxide absorb ultraviolet, infrared, and most visible light; Adding cadmium oxide and boron oxide to absorb neutron flow glass fibers (fibers drawn or blown from molten glass with a diameter of a few to several thousand micrometers), The same composition as glass) Glass filament (i.e., long glass fiber) Glass steel (reinforced plastic with a strength similar to steel obtained by combining epoxy resin with glass fiber) cellophane (transparent cellulose film made of viscose solution) Water glass (Na2SiO3) aqueous solution, named for some of the same composition as ordinary glass) Metal glass (glassy metal, Fluorite (fluorspar) (colorless and transparent CaF2, used as a prism and light mirror in optical instruments) plexiglass (polymethyl methacrylate).