Infrared Spectroscopy of Molten LiCl−KCl under Hydrogen Gas Atmosphere

Abstract

Infrared spectroscopy of molten LiCl−KCl eutectic melt under several hydrogen pressures at 673 K provided an absorption band in the wavenumber region of 1300−1600 cm-1. This absorption band is ascribed to the vibration of a Li−H interaction in the melt. On the other hand, the absorption bands ascribed to a K−H interaction and H−Cl interaction were not observed. The existence of the Li−H interaction shows a strong attractive force between dissolved hydrogen atoms and Li+ ions in the melt.