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Presentation

Vypracoval: Adam Bábík

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Silicon dioxide Silicon dioxide

SynonymsSynonymssilica, fumed, silica, fumed, silicon(IV)oxidesilicon(IV)oxide

Molecular formulaMolecular formula SiOSiO22

Molecular weightMolecular weight 60.0860.08 IUPAC nameIUPAC name dioxosilanedioxosilane

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SiOSiO22

is one of the most common chemical compounds is one of the most common chemical compounds

silica crystals are found in the nature in three forms, the silica crystals are found in the nature in three forms, the most common form si quartzmost common form si quartz

pure silica is colorless or whitepure silica is colorless or white

it is widely and abundently distributed on the Earth in it is widely and abundently distributed on the Earth in the pure state or in the form of silicatesthe pure state or in the form of silicates

it has many important uses in various branches of it has many important uses in various branches of industryindustry

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QuartzQuartz

is most common form of is most common form of silicon dioxidesilicon dioxide

we may found it in sand, we may found it in sand, rocks, clay and graniterocks, clay and granite

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SilicatesSilicates

silicates are compounds of Silicon and Oxygen silicates are compounds of Silicon and Oxygen combined with one or more metal ions,combined with one or more metal ions,for example by Iron, Calcium or Magnesium for example by Iron, Calcium or Magnesium

most of minerals are formed from silica, like agate, most of minerals are formed from silica, like agate, amethyst, chalcedony, jasper, onyx, crystalline, jadeit, amethyst, chalcedony, jasper, onyx, crystalline, jadeit, soapstone, topaz, zircon etc.soapstone, topaz, zircon etc.

silicates are divided to many categories:silicates are divided to many categories:neosilicates, sorosilicates, cyklosilicates, neosilicates, sorosilicates, cyklosilicates,

inosilicates, phyllosilicates and tectosilicatesinosilicates, phyllosilicates and tectosilicates

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JadeitJadeit TopazTopaz SoapstoneSoapstone

ZirconZircon JasperJasper QuartzQuartz

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Applications + productsApplications + products

silica is used ceramic materialsilica is used ceramic material

it si commonly used like filler for paints, plastics, adhesives it si commonly used like filler for paints, plastics, adhesives and rubberand rubber

silica is raw material for the production of glass,silica is raw material for the production of glass,for windows, bottles, jars, lights bulbs and like plate glassfor windows, bottles, jars, lights bulbs and like plate glass

it withstands sudden changes of temperature, and then it can it withstands sudden changes of temperature, and then it can be used in parts, which are subjected to wide ranges of heat be used in parts, which are subjected to wide ranges of heat and coldand cold

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References:References:

www.google.com

www.mineraly.net

www.wildaboutrocks.com

www.azom.com

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Thanks for Your attention!!!Thanks for Your attention!!!