Commercial chemicals BaCO3 (99% purity, Donauchem e Urseta Ltd.), BaSO4 (99% purity, Donauchem e Urseta
Ltd.), SnO2 (99% purity, Shepherd Chemical Company), and Tb4O7 (99.5% purity, Indian Rare Earths Ltd.) were used as a starting raw material. BaSn1xTbxO3 pigments were prepared by the classical ceramic method, i.e. solid share reaction. Tb4O7 reaction yields in Tb3þ where the assumption is that BaSnO3 lattice draw in Tb4þ.