Barium titanate is the inorganic compound with the chemical formula BaTiO3.
Barium titanate is the inorganic compound with the chemical formula BaTiO3. Barium titanium oxide is a white powder and transparent as larger crystals. This titanate is a ferroelectric ceramic material, with a photorefractive effect and piezoelectric properties.
Chemical Properties
Other Names: Barium Titanium Oxide
Chemical formula: BaTiO3 & BaTi4O3
CAS No.: 12047-27-7
Appearance: White Powder
Molar mass: 233.192 g
Melting point: 1,625°C (2,957˚F; 1,898K)
Density: 6.02 g/cm3, solid
Barium Titanium oxide is slightly soluble in dilute mineral acids; Dissolves in concentrated hydrofluoric acid; Insoluble in water.
Physical Properties
| Item | Data | Method |
| Particle size D50 (μm) | 0.5-2.0 | Laser Measurement |
| Moisture (wt%) | <0.3 | At 105°C (1 Hour) |
| Ignition loss (wt%) | <0.5 | At 800°C (1 Hour) |
| Crystal Form (BaTiO3) | Tetragonal | XRD |
Chemical Properties
| Type | BT-1 | BT-2 | BT-3 |
| Purity (wt%) | ≥99.5 | ≥99 | ≥99 |
| SrO (wt%) | <0.05 | <0.10 | <0.30 |
| Fe2O3 (wt%) | <0.01 | <0.03 | <0.10 |
| K2O+Na2O (wt%) | <0.01 | <0.03 | <0.15 |
| Al2O3 (wt%) | <0.10 | <0.20 | <0.15 |
| SiO2 (wt%) | <0.10 | <0.20 | <0.30 |
Applications:
As a basic inorganic dielectric material, Barium titanate is widely used in the area of ceramic capacitor, PTC Thermistor, Wave Filter, Chemical Catalyst, Organic Compound and their performance improvement with excellent dielectric, temperature and chemical properties. .
Barium titanate is also a piezoelectric material for microphones and other transducers
