Absorption spectra of the lanthanides in fused salt media

Abstract

Spectra are presented for solutions of praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, and ytterbium fluorides in fused LiC1-KC1 eutectic at 4000 C. These spectra are discussed and compared with similar results which have been obtained in the ! same and other Fused salt media and in aqueous solutions. Molar absorptivities for selected absorption bands of the rare-earth spectra which might be useful in quantitative analytical determinations are also given. The spectra were obtained with the Cary Model 12 spectrophotometer using an electrically heated cell-block furnace as the cell holder. 23-26, 28-30). This investigation is concerned with the determination of the unique absorption spectra of dilute DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government.