The alkaline titanate first produced is converted into crystalline fluotitanate, K 2 TiF 6, which is with difficulty soluble and is extracted with hot water and filtered off.
If titanic oxide be fused with excess of alkaline carbonate a titanate, R 2 T103, is formed.
This salt is decomposed by water with the formation of a solution of alkali free of titanium, and a residue of an acid titanate, which is insoluble in water but soluble in cold 'aqueous mineral acids.
The ceramic is a fine-grained mixture including barium titanate and similar materials with a high permittivity.
The family of ferroelectric ceramic materials such as barium titanate and lead zirconate titanate (PZT) were developed in the 1940s.
