Электронные спектры поглощения ионов неодима(III) в расплавах хлоридов щелочных металлов

Abstract

Electronic absorption spectra of Nd(III) ions were recorded in fused alkali chlorides. The melts were based on individual chlorides (LiCl, NaCl, KCl and CsCl), NaCl–CsCl and LiCl–KCl–CsCl eutectics and NaCl–KCl equimolar mixture, and the measurements were performed between 350 and 850 oC. The effect of temperature and cations of the second coordination sphere on the spectra and neodymium speciation is discussed.