Question

Explain pyrosilicates and cyclic silicates with structure

Answer 1

Answer:

A pyrosilicate is a type of chemical compound; either an ionic compound that contains the pyrosilicate anion Si

2O6−

7, or an organic compound with the hexavalent ≡O

3Si-O-SiO

3≡ group. The anion is also called disilicate[1] or diorthosilicate.

Cyclic silicates contain (SiO3)n2n- ions which are formed by linking three or more tetrahedral SiO44- units cyclically. Each unit shares two oxygen atoms with other units. E.g. 1) Benitoite - BaTi(SiO3)3 : containing three tetrahedra arranged cyclically [Si3O9)6-].