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Silicon is prepared commercially by heating silica and carbon in an electric furnace, using carbon electrodes. Several other methods can be used for preparing the element. Amorphous silicon can be prepared as a brown powder, which can be easily melted or vaporized.
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periodic.lanl.gov/elements/14.html
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Silica (chemical name for the mineral quartz and a synonym for silicon dioxide): Used in manufacture of special steels and cast iron, aluminum alloys, glass and refractory materials, ceramics, Fused silica is used as an ablative material in rocket engines, spacecraft, silica fibers used in reinforced plastics.
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www.mii.org/Minerals/photosil.html
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Silicon dioxide - Wikipedia, the free encyclopedia
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The chemical compound silicon dioxide , also known as silica (from the Latin silex ), is an oxide of silicon with a chemical formula of SiO 2 and has been known for its hardness since antiq...
en.wikipedia.org/wiki/Silicon_dioxide
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Silica gel is a synthetic material that was patented in 1919 by Walter Patrick from the Johns Hopkins University in Baltimore, Maryland. Although its name implies it is a gel, it is a solid...
http://www.ehow.com/tag/chromatography/
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What is Silica Gel Used For?. Silica gel is a synthetic material that was patented in 1919 by Walter Patrick from the Johns Hopkins University in Baltimore, Maryland. Although its name implies it is a gel, it is a solid... ... Initially silica gel was used in World War I gas masks. It helped to absorb vapors and moisture.
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www.ehow.com/facts_4970179_what-silica-gel-used.html
www.ehow.com/facts_4970179_what-silica-gel-used.html
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EAGER PLASTICS-CHICAGO. ... It is a versatile thickening agent that has even been used to "thicken" fresh water and sea water. Eager Plastics supplies quatities of Cabosil as small as 8 ounces. Cabosil is an extremely fine particle size silica (silicon-dioxide / SiO2) aerogel.
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www.eagerplastics.com/cab.htm
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Objective: This collaborative study was to provide longitudinal physical and chemical characterization data as well as abrasivity and cleaning power data on three dentifrice grade silica materials, ... Calcium pyrophosphate reference material was used for both abrasivity and cleaning power methods. Two laboratories used...
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iadr.confex.com/iadr/2003SanAnton/techprogram/abstract_...
iadr.confex.com/iadr/2003SanAnton/techprogram/abstract_27752.htm
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Dynasil Corporation was founded in 1960 as a manufacturer of synthetic fused silica and this is the Dynasil Optical Materials Web Site. ... In the 21st century, its products are used in the manufacture of optical components, lasers, semiconductors, telecom equipment, electronics, scientific instruments and an assortment of...
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It should be noted that the list of elements determined is not all-inclusive and so omits some of the components used to color glass (e.g., gold and copper). It does, however, include the range of trace elements judged to be of potential use in characterizing the sources of silica used in the manufacture of BSGCo glass.
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www.historycooperative.org/journals/sia/31.2/owen.html
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