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The chemical compound silicon dioxide, also known as silica, is the oxide of silicon, chemical formula SiO2.
It is found in nature in several forms, including quartz and opal. In fact, silica has 17 crystalline forms. Also, horsetail is one of the plants which is rich in Silica.
It is manufactured in several forms including glass (in colorless high purity form called fused silica) and silica gel (used e.g. as desiccants in brand new clothes and leather goods). Silica is a major ingredient of Portland cement. The ceramic re-entry heat protection tiles mounted on the bottom side of the Space Shuttles are made mostly of silica.
Inhaling silica dust can lead to silicosis.
Further reading
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Example Usage of Silica |
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Bobby0K: @curlyluddite What the research found was more malted barley=more Silica and more hops=more Silica. Report didn't seem to get that. |
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tati_: oi, eu tenho problemas e guardo vários daqueles saquinhos de Silica gel. tendo um sobrando, pode me dar? beijos. |
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kanipanda: @Silica_t どうせならそこまで凝って欲しいですよねぇ。 |
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