Powder of fine barium strontium titanate particles, production method therefor, dispersion, and resin composition

Abstract

The disclosure relates to barium strontium titanate, and to a barium strontium titanate fine particle powder, characterized in that the average primary particle size of the primary particles is 50 nm or less, and the difference between the theoretical lattice constant and the lattice constant is 0 Å or more and 0.0080 Å or less. The disclosure also relates to a method for producing a barium strontium titanate fine particle powder, characterized in that a titanium raw material is mixed with an alkaline aqueous solution, a neutralization reaction is performed to obtain a hydrous titanium hydroxide slurry, the slurry is washed with water and heated, the slurry is added to a mixed solution of an aqueous strontium solution and an aqueous barium solution, and a wet reaction is carried out at a temperature range of 100 to 300° C., followed by washing the slurry with water and drying the slurry.

Dependencies are inferred from the claim text.