This page provides supplementary chemical data on lithium tantalate.
Material Safety Data Sheet
The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions.
Structure and properties
Structure and properties Index of refraction, nD ? Abbe number ? Dielectric constant, ε11 51 ε0 (measured at constant stress) Dielectric constant, ε33 45 ε0 (measured at constant stress) Dielectric constant, ε11 38.3 ε0 (measured at constant strain) Dielectric constant, ε33 46.2 ε0 (measured at constant strain) Piezoelectric constant, d15 26 pC/N Piezoelectric constant, d22 7 pC/N Piezoelectric constant, d31 -2 pC/N Piezoelectric constant, d33 8 pC/N Bond strength ? Bond length ? Bond angle ? Magnetic susceptibility ?
Thermodynamic properties
Phase behavior Triple point ? K (? °C), ? Pa Critical point ? K (? °C), ? Pa Thermal Expansion 2 × 10−6 K−1 (z), 16 × 10−6 K−1 (x,y) Curie temperature ~950 K (~680 °C) (~1220 °F) Std enthalpy changeof fusion, ΔfusHo ? kJ/mol Std entropy changeof fusion, ΔfusSo ? J/(mol·K) Std enthalpy changeof vaporization, ΔvapHo ? kJ/mol Std entropy changeof vaporization, ΔvapSo ? J/(mol·K) Solid properties Std enthalpy changeof formation, ΔfHosolid ? kJ/mol Standard molar entropy,Sosolid ? J/(mol K) Heat capacity, cp ? J/(mol K) Liquid properties Std enthalpy changeof formation, ΔfHoliquid ? kJ/mol Standard molar entropy,Soliquid ? J/(mol K) Heat capacity, cp ? J/(mol K) Gas properties Std enthalpy changeof formation, ΔfHogas ? kJ/mol Standard molar entropy,Sogas ? J/(mol K) Heat capacity, cp ? J/(mol K)
Spectral data
UV-Vis λmax ? nm Extinction coefficient, ε ? IR Major absorption bands ? cm−1 NMR Proton NMR Carbon-13 NMR Other NMR data MS Masses of main fragments
References