Characteristic
Barium titanate is an inorganic compound with chemical formula BaTiO3. Barium titanate appears white as a powder and is transparent when prepared as large crystals.
Chemical formula:BaTiO3
Molar mass:233.192 g
Appearance:white crystals
Odor:odorless
Density:6.02 g/cm3, solid
Melting point:1,625 °C (2,957 °F; 1,898 K)
Solubility in water:insoluble
Solubility:slightly soluble in dilute mineral acids; dissolves in concentrated hydrofluoric acid
Band gap:3.2 eV (300 K, single crystal)
Refractive index (nD):no2.412; ne=2.360
Crystal structure:Tetragonal, tP5
Application
It is a ferroelectric ceramic material that exhibits the photorefractive effect and piezoelectric properties. It is used in capacitors, electromechanical transducers and nonlinear optics.