Absorption Spectra of Molten Fluoride Salts. Solutions of Several Metal Ions in Molten Lithium Fluoride-Sodium Fluoride-Potassium Fluoride
Spectra are presented for nickel fluoride, cobalt fluoride, chromic fluoride, praseodymium fluoride, uranium tetrafluoride, and uranyl fluoride dissolved in molten lithium fluoride-sodium fluoride-potassium fluoride at temperatures ranging from 500° to approximately 650°C. These spectra are compared to similar spectra obtained in other molten salts and aqueous solutions. General procedures are described which were used in preparing the fluoride salt melt and in recording the spactra by means of a high-temperature cell assembly designed for use with a Cary recording spectrophotometer, Model 14M.