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Liz LaRosa 5th grade science 2010

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Presentation transcript:

Vypracoval: Adam Bábík Presentation Vypracoval: Adam Bábík

Silicon dioxide Synonyms silica, fumed, silicon(IV)oxide Molecular formula SiO2 Molecular weight 60.08 IUPAC name dioxosilane

SiO2 is one of the most common chemical compounds silica crystals are found in the nature in three forms, the most common form si quartz pure silica is colorless or white it is widely and abundently distributed on the Earth in the pure state or in the form of silicates it has many important uses in various branches of industry

Quartz is most common form of silicon dioxide we may found it in sand, rocks, clay and granite

Silicates silicates are compounds of Silicon and Oxygen combined with one or more metal ions, for example by Iron, Calcium or Magnesium most of minerals are formed from silica, like agate, amethyst, chalcedony, jasper, onyx, crystalline, jadeit, soapstone, topaz, zircon etc. silicates are divided to many categories: neosilicates, sorosilicates, cyklosilicates, inosilicates, phyllosilicates and tectosilicates

Jadeit Topaz Soapstone Zircon Jasper Quartz

Applications + products silica is used ceramic material it si commonly used like filler for paints, plastics, adhesives and rubber silica is raw material for the production of glass, for windows, bottles, jars, lights bulbs and like plate glass it withstands sudden changes of temperature, and then it can be used in parts, which are subjected to wide ranges of heat and cold

References: www.mineraly.net www.wildaboutrocks.com www.azom.com www.google.com www.mineraly.net www.wildaboutrocks.com www.azom.com

Thanks for Your attention!!!