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  Inorganic Chemistry

SILICATES

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Silicates are the metal derivatives of silicic acid (H4SiO4). The basic of all silicates is the anion. In SiO4–4 anion, In SiO4–4 Si is sp3hybridized, and it forms four covalent bonds with four negatively charged oxygen atoms. SiO4–4 anion has a tetrahedral shape.

 

Alakli metal silicated are commonly prepared by fusing metal oxides or metl carbonated with sand {SiO2} at high temperatures. For examples, sodium silicate can be prepared by fusing sand with sodium carbonate.

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