Chemistry of Heterocyclic Compounds.
Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau.
Vol. 33.
1997.
P. 566-570
Phase equilibria in the Eu2O3-HI-H2O and EuI3-HI-H2O systems at 25°C are studied by the solubility method. The fields of crystallization of europium triiodide nonahydrate EuI3 · 9H2O and basic iodide Eu2I(OH)5 · 2H2O are established. The crystal hydrates are characterized by X-ray powder diffraction, thermogravimetry, and crystal optics.