Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Isopiestic determination of the activity coefficients of some aqueous rare earth electrolyte solutions at 25/sup 0/C. I. The rare earth chlorides

Journal Article · · J. Chem. Eng. Data; (United States)
DOI:https://doi.org/10.1021/je60070a015· OSTI ID:7156715
; ; ; ; ;

The osmotic coefficients of the aqueous trichlorides of La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y were determined from 0.1 M to saturation at 25/sup 0/C. Semiempirical least-squares equations were obtained for the osmotic coefficients as a function of molality and these equations were used to calculate water activities and mean molal activity coefficients. The water activities of the light rare earth chlorides at constant molalities are higher than for the heavy rare earths, while the mean molal activity coefficients are larger for the heavy rare earths than for the light ones. The above effects are discussed in terms of changes in the cationic radii and hydration of the rare earth ions.

Research Organization:
Ames Lab., Iowa
OSTI ID:
7156715
Journal Information:
J. Chem. Eng. Data; (United States), Journal Name: J. Chem. Eng. Data; (United States) Vol. 21:3; ISSN JCEAA
Country of Publication:
United States
Language:
English

Similar Records

Isopiestic determination of the activity coefficients of some aqueous rare earth electrolyte solutions at 25/sup 0/C. II. The rare earth perchlorates
Journal Article · Thu Mar 31 23:00:00 EST 1977 · J. Chem. Eng. Data; (United States) · OSTI ID:7216774
Isopiestic determination of the activity coefficients of some aqueous rare earth electrolyte solutions at 25/sup 0/C. 3. The rare earth nitrates
Journal Article · Fri Jul 01 00:00:00 EDT 1977 · J. Chem. Eng. Data; (United States) · OSTI ID:7218754
Isopiestic determination of the activity coefficients of some aqueous rare-earth electrolyte solutions at 25/sup 0/C. V. Dy(NO/sub 3/)/sub 3/, Ho(NO/sub 3/)/sub 3/, and Lu(NO/sub 3/)/sub 3/
Journal Article · Wed Dec 31 23:00:00 EST 1980 · J. Chem. Eng. Data; (United States) · OSTI ID:6389064

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
AQUEOUS SOLUTIONS
CHLORIDES
CHLORINE COMPOUNDS
DATA
DISPERSIONS
DYSPROSIUM CHLORIDES
DYSPROSIUM COMPOUNDS
ERBIUM CHLORIDES
ERBIUM COMPOUNDS
EUROPIUM CHLORIDES
EUROPIUM COMPOUNDS
GADOLINIUM CHLORIDES
GADOLINIUM COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HOLMIUM CHLORIDES
HOLMIUM COMPOUNDS
INFORMATION
LANTHANUM CHLORIDES
LANTHANUM COMPOUNDS
LUTETIUM CHLORIDES
LUTETIUM COMPOUNDS
MEDIUM TEMPERATURE
MIXTURES
NEODYMIUM CHLORIDES
NEODYMIUM COMPOUNDS
PHYSICAL PROPERTIES
PRASEODYMIUM CHLORIDES
PRASEODYMIUM COMPOUNDS
RARE EARTH COMPOUNDS
SAMARIUM CHLORIDES
SAMARIUM COMPOUNDS
SOLUTIONS
TABLES
TERBIUM CHLORIDES
TERBIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
THULIUM CHLORIDES
THULIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTERBIUM CHLORIDES
YTTERBIUM COMPOUNDS
YTTRIUM CHLORIDES
YTTRIUM COMPOUNDS