Densities and thermal expansion of some aqueous rare earth chloride solutions between 5/sup 0/ and 80/sup 0/C. II. SmCl/sub 3/, GdCl/sub 3/, DyCl/sub 3/, ErCl/sub 3/, and YbCl/sub 3/

Journal Article · Thu Jan 01 00:00:00 EST 1976 · J. Chem. Eng. Data; (United States)

DOI:https://doi.org/10.1021/je60068a004· OSTI ID:7324502

Habenschuss, A; Spedding, F H

A dilatometric method is used to determine the densities of aqueous solutions of SmCl/sub 3/, GdCl/sub 3/, DyCl/sub 3/, ErCl/sub 3/, and YbCl/sub 3/ from approximately 0.1 to 3.5 molal, and from 5 to 80/sup 0/C at 5/sup 0/ intervals. Temperature and concentration dependent empirical equations representing the apparent molal volumes are given. The partial molal volumes, coefficients of thermal expansion, and apparent and partial molal expansibilities derived from these fits are discussed in terms of the ion-ion and ion-solvent interactions in these solutions and their dependence on ion size. The previously reported two-series effect in the apparent and partial molal volume properties at 25/sup 0/C across the rare earth series, although modified, persists from 5/sup 0/ to 80/sup 0/C at all concentrations. The coefficients of thermal expansion and apparent and partial molal expansibilities increase with decreasing ionic radius of the rare earth cation, with a reversal in this trend in the middle of the rare earth series.

• Research Organization: Ames Lab., Iowa
• OSTI ID: 7324502
• Journal Information: J. Chem. Eng. Data; (United States), Vol. 21:1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
DYSPROSIUM CHLORIDES
THERMAL EXPANSION
ERBIUM CHLORIDES
GADOLINIUM CHLORIDES
SAMARIUM CHLORIDES
YTTERBIUM CHLORIDES
AQUEOUS SOLUTIONS
DENSITY
TEMPERATURE DEPENDENCE
CHLORIDES
CHLORINE COMPOUNDS
DISPERSIONS
DYSPROSIUM COMPOUNDS
ERBIUM COMPOUNDS
EXPANSION
GADOLINIUM COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
MIXTURES
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SAMARIUM COMPOUNDS
SOLUTIONS
YTTERBIUM COMPOUNDS
400201* - Chemical & Physicochemical Properties