Barium titanate

Barium titanate (CAS 12047-27-7), also known as barium metatitanate and abbreviated as BTO, is a piezoelectric ceramic material central to the electronics and advanced materials industries.

Where is Barium titanate used?

• Electronics: primary dielectric in multilayer ceramic capacitors (MLCCs), where high permittivity enables compact, high-capacity circuits
• Sensors and actuators: converts mechanical stress into electrical signals and vice versa
• Medical, industrial and sonar equipment: piezoelectric transducers and ultrasonic sensors for precision signal conversion
• Plastics and polymer compounding: functional filler imparting dielectric and piezoelectric properties to flexible composite films for smart packaging
• Water treatment: BTO-based photocatalytic systems drive pollutant degradation under UV or mechanical activation.

Commercial specifications

• Purity typically 99% and upward for electronic applications
• Fine ceramic powder with particle size and crystalline phase specified to match end-use performance
• High-purity electronic and technical grades
• Bulk and smaller research-quantity packaging