What chemicals are in glass?

Answer 1

Glass is by definition an amorphous solid material made by fusing silica with a basic oxide. Glass is called amorphous because it is neither a solid nor a liquid but exists in a vitreous, or glassy, state. Architectural glass is made from three principal raw materials, easily found in nature: silica, lime and sodium carbonate. The secondary materials are used to give special properties to glass or to facilitate the glass-making process. By mixing secondary materials with the basic raw materials in the right percentage different types of glass are obtained, which can be categorized into three broad categories: Soda-lime glass: This is the most common commercial glass (90% of total production), and also the least expensive. The chemical and physical properties of soda-lime glass are the basis for its widespread use. Soda-lime glass is primarily used for bottles, jars, everyday drinking glasses, and window glass. It usually contains 60-75% silica, 12-18% soda, and 5-12% lime. Soda-lime glass is resistant neither to high temperatures nor sudden thermal changes, nor to corrosive chemicals. Lead glass: As the name already indicates, lead glass has a high percentage of lead oxide (at least 20% of the batch). Lead glass has a relatively soft surface, making it especially suited for decorating using grinding, cutting, and engraving processes. This glass will not withstand high temperatures or sudden changes in temperature. Borosilicate glass: The third major group, borosilicate glass, is any silicate glass having at least 5% of boric oxide in its composition. It demonstrates greater resistance to thermal changes and chemical corrosion. Thanks to its properties, borosilicate glass is suitable for use in industrial chemical process plants, in laboratories, for ampoules and vials in the pharmaceutical industry, in bulbs for high-powered lamps, etc. Borosilicate glass is also used in the home for cooking plates and other heat-resistant products. so yerr made from: - silica - soda - lime retrieved from website: Glass on Web. (2008). Glass: Explore glass chemical composition. Retrieved October 13, 2008 from http://www.glassonweb.com/articles/article/41/

Answer 2

Commerically manufactured Glass is a brittle, super-cooled liquid made up primarily of Silica (SiO2) with various other compounds added for strength, thermal properties, 'sparkle', etc. (such as Sodium carbonate, calcium oxide, magnesium oxide, lead, boron, iron, sodium sulfate, etc)

Answer 3

Glass which is used in windows and drinking vessels is made of SiO2, Na2O and CaO.

Answer 4

Silica.

Answer 5

silica