Topic: Properties Of Silicon Dioxide
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What are the chemical properties of silicon dioxide?
Silicon dioxide, chemical formula SiO2, if that's the substance you were thinking of, is the oxide of silicon. At room temperature, it is a clear, hard, brittle glassy substance. In fact, SiO2 is the main ingredient in window glass, the oth... Read More »
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What are the physical properties of silicon dioxide?
density 2.0-2.3 gm/cm3 electrical conductivity varies widely breakdown field >1E7 V/cm in thermal oxides; can be as low as 1E6 V/cm in CVd oxides thermal conductivity 0.01 W/cm K (bulk) thermal diffusivity 0.009 cm2/sec (bulk) coefficient o... Read More »
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What is Silicon Dioxide in Food?
Silicon dioxide is an additive they put into various foods to prevent clumping or caking. It has the ability to absorb almost 120% of its weight and stay free flowing. Silicon dioxide is used in such things as flour, salt, powdered foods (s... Read More »
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Properties Of Silicon Dioxide
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The formula for silicon dioxide is SiO2. It is an oxide of silica which is a major component of sand. Silicon dioxide or silica is an odorless, white or transparent, crystalline solid.
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It is a white or colorless non-soluble solid. Silicon dioxide is made in the lower layers of the Earth and it produces quartz. Silicon dioxide is also widely known as silica. The glass in our windows are made up of this compound. Look here ...
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The most common occurrence of SiO2 is sand. Obviously, it isn't soluble in water (or much of anything else). It has a high melting point -- around 2000 F, and the boiling point is higher yet. It does not conduct electricity. The most common...
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Source: http://answers.yahoo.com/question/index?qid=20081216093838AATzT96
Silicon is actually more like a metal even though it is not a metal. It is actually a non metal. Silicon is solid, and to the naked eye, it appears as a tarnished silver in color. Silicon is actually very thin and light weight but it is ver...
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Silicon dioxide, commonly referred to as "silica," is a molecule consisting of two atoms of oxygen with one atom of silicon, described with the chemical formula SiO2.
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Source: http://www.ehow.com/facts_5707887_chemical-formula-silicon-dioxid...
The only chemical which effectively dissolves silicon dioxide is hydrofluoric acid. But note that silicon dioxide does dissolve to a very slight extent in water. The beaches are not dissolving away into the ocean, but some tiny amount of si...
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