Iron oxide remains unchanged and silica forms a polysilicate.
2.
More recently, a less reactive tetraethoxysilane-( TEOS ) or ethyl polysilicate and various disiloxanes are used as starting materials.
3.
The principle behind this prerequisite can be found in structural chemistry : Since the polysilicate ions are not of uniform size, they cannot arrange themselves along with the metal ions into a regular crystal lattice ( Iler, 1955, p . 182 ).
मोबाइल