explan tetrahedral structurces of silicaters . how producer gas prepared
Answers
The basic building block of all silicate minerals is the [SiO4]4− tetrahedron.
There are four covalent Si−O bonds. Each oxygen atom forms one vertex of the tetrahedron.
The silicon to oxygen atom ratio is 1:4.
Silicate Tetrahedron: Ball-and-stick model of the silicate tetrahedron; red represents oxygen atoms and gray represents the silicon atom in the center.
Silicate minerals containing isolated [SiO4]4− tetrahedrons are called nesosilicates or orthosilicates.
Corner-Sharing Tetrahedrons
If two [SiO4]4− tetrahedrons share an oxygen atom at one common vertex, an [Si2O7]6− ion is formed.
The silicon to oxygen ratio is 2:7. Silicate minerals containing isolated [Si2O7]6− double tetrahedrons are called sorosilicates.
Silicate Chains-->>
Silicate minerals containing chains are termed inosilicates.
They consist of single chains (SiO32−)n, in which the silicon to oxygen atom ratio is 1:3, and double chains (Si4O116−)n, in which the silicon to oxygen atom ratio is 4:11.