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How do we extract silicon?

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All you have to do is heat a mixture of common silica sand and magnesium powder in a test tube. The magnesium steals the oxygen atoms from the silica, leaving elemental silicon. No reaction is perfect, and in this case you're left with a mixture of magnesium, magnesium oxide, magnesium silicide and silicon in the bottom of the test tube. read more

*Silicon transmits over 95% of infrared wavelength. *Silicon is an important ingredient in steel. *Diatoms in both fresh and salt water extract silica from the water to use as a component of the plant's cell walls. read more

Second only to oxygen, silicon is the most abundant element in Earth's crust. It is found in rocks, sand, clays and soils, combined with either oxygen as silicon dioxide, or with oxygen and other elements as silicates. Silicon's compounds are also found in water, in the atmosphere, in many plants, and even in certain animals. read more

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