Barium stannate (BSO) is an oxide of barium and tin with the chemical formula BaSnO3. It is a wide band gap semiconductor with a perovskite crystal structure. A trihydrate exists and is used in the production of ceramic insulation requiring dielectric properties.
Preparation Polycrystalline barium stannate can be prepared by a solid state reaction between barium carbonate and tin(IV) oxide.
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