Electronic absorption spectra of Pr(III) ions were recorded in fused alkali chlorides. To assess the effect of temperature and solvent melt cations on the spectra the measurements were performed between 350 and 850 oC in the melts based on individual alkali metal chlorides (LiCl, NaCl, KCl and CsCl) and several mixtures (LiCl–KCl, NaCl–CsCl and LiCl–KCl–CsCl eutectics and NaCl–KCl equimolar mixture)
