It belongs to the ABO structure ferroelectrics like lithium tantalate and barium titanate. This page provides supplementary chemical data on lithium tantalate. Lanthanum tantalate (LaTaO) contains isolated tetrahedra. Lithium tantalate (LiTaO) adopts a perovskite structure. For some uses it can be replaced by lithium tantalate, . These have now largely been replaced by KTN (potassium tantalate niobate) and barium titanate (BaTiO3). Potassium hexaisoproxynoibate and tantalate can react with nickel chloride to make Ni[Nb(OPr)] and Ni[Ta(OPr)]. Tantalate is an tantalum-containing anion or a salt of such an anion.