Studies of the hydration of ions lanthanium, gadolinium and lutetium in chloride solutions by ultrasonic interferometric method

B. Voleisiene; G. Migliniene; A. Voleisis

Studies of the hydration of ions lanthanium, gadolinium and lutetium in chloride solutions by ultrasonic interferometric method

Authors

B. Voleisiene Kaunas University of Technology
G. Migliniene Kaunas University of Technology
A. Voleisis Kaunas University of Technology

Abstract

Results of concentrational dependencies of ultrasound velocity, adiabatic and apparent molal compressibilities, apparent molal and partial volumes of LaCl₃, GdCl₃ and LuCl₃ solutions at 25^oC are presented. Total hydration numbers for investigated solutions were determined from ultrasonic measurements. It was shown that the amount of ionic hydration does not vary monotonically with the atomic number and the inner-sphere hydration number for La³⁺ is nine, for Lu³⁺ is eight for Gd³⁺ exsist intermediate coordination.

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Published

1996-12-02

Issue

Vol. 26 No. 1 (1996)

Section

PHYSICAL ACOUSTICS

License

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