What are the characteristics of lithium fluoride?
Systematic name Lithium fluoride Molecular formula LiF Molar mass 25.94 g/mol CAS number 7789-24-4 Density 2.64 g/cm3 Solubility (water) 0.27 g / 100g Water at 18 °C Melting point 845 °C Boiling point 1 676 °C Co-Efficient of Thermal Expansion (x10-6 /°C) 37 Dielectric Constant 9.1 Young’s Modulus (GPa) 64.8 Refractive Index at 1.0µm 1.38711 It is a white, inorganic, crystalline, ionic, solid salt under standard conditions. It transmits ultraviolet radiation better than any other substance. Uses include specialized UV optics, and as a means to record gamma and neutron exposure in thermoluminescent dosimeters. Lithium fluoride is most widely used as a flux in the production of ceramics, such as enamels, glasses and glazes. Similarly it is also used in brazing and welding fluxes and in metallurgical molten salt chemistry in metallurgy.
