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Title: Apparent molar volumes of La(CF{sub 3}SO{sub 3}){sub 3}(aq) and Gd(CF{sub 3}SO{sub 3}){sub 3}(aq) at 278 K, 298 K, and 318 K at pressures to 30.0 MPa

Abstract

Densities of La(CF{sub 3}SO{sub 3}){sub 3}(aq) and Gd(CF{sub 3}SO{sub 3}){sub 3}(aq) have been measured at 278 K, 298 K, and 318 K at pressures of 0.1 MPa, 7.0 MPa, and 30.0 MPa using vibrating-tube densimeters. Apparent molar volumes obtained from the density data have been fitted to the Pitzer equation. The standard partial molar volumes V{sub {phi}}{sup {infinity}} and the ion-interaction parameters {beta}{sup (0)V} and {beta}{sup (1)V} have been determined through least-squares fitting to the experimental results. The standard partial molar volume of the trifluoromethanesulfonate anion V{sub {phi}}{sup {infinity}}(CF{sub 3}SO{sub 3}{sup {minus}},aq) was calculated at 298 K and 0.1 MPa from the partial molar volumes of the gadolinium and lanthanum salts and the available values for the standard partial molar volumes of the cations. Excellent agreement is obtained for V{sub {phi}}{sup {infinity}}(CF{sub 3}SO{sub 3}{sup {minus}},aq) calculated from the data for the two salts.

Authors:
;  [1];  [2]
  1. Memorial Univ. of Newfoundland, St. John`s, Newfoundland (Canada). Dept. of Chemistry
  2. Oak Ridge National Lab., TN (United States). Chemical and Analytical Sciences Div.
Publication Date:
OSTI Identifier:
378022
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Journal Article
Journal Name:
Journal of Chemical and Engineering Data
Additional Journal Information:
Journal Volume: 41; Journal Issue: 5; Other Information: PBD: Sep-Oct 1996
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; SULFONATES; THERMODYNAMIC PROPERTIES; ORGANIC FLUORINE COMPOUNDS; LANTHANUM COMPOUNDS; GADOLINIUM COMPOUNDS; AQUEOUS SOLUTIONS; DENSITY; EQUATIONS OF STATE; VOLUME

Citation Formats

Xiao, C, Tremaine, P R, and Simonson, J M. Apparent molar volumes of La(CF{sub 3}SO{sub 3}){sub 3}(aq) and Gd(CF{sub 3}SO{sub 3}){sub 3}(aq) at 278 K, 298 K, and 318 K at pressures to 30.0 MPa. United States: N. p., 1996. Web. doi:10.1021/je960107v.
Xiao, C, Tremaine, P R, & Simonson, J M. Apparent molar volumes of La(CF{sub 3}SO{sub 3}){sub 3}(aq) and Gd(CF{sub 3}SO{sub 3}){sub 3}(aq) at 278 K, 298 K, and 318 K at pressures to 30.0 MPa. United States. https://doi.org/10.1021/je960107v
Xiao, C, Tremaine, P R, and Simonson, J M. Sun . "Apparent molar volumes of La(CF{sub 3}SO{sub 3}){sub 3}(aq) and Gd(CF{sub 3}SO{sub 3}){sub 3}(aq) at 278 K, 298 K, and 318 K at pressures to 30.0 MPa". United States. https://doi.org/10.1021/je960107v.
@article{osti_378022,
title = {Apparent molar volumes of La(CF{sub 3}SO{sub 3}){sub 3}(aq) and Gd(CF{sub 3}SO{sub 3}){sub 3}(aq) at 278 K, 298 K, and 318 K at pressures to 30.0 MPa},
author = {Xiao, C and Tremaine, P R and Simonson, J M},
abstractNote = {Densities of La(CF{sub 3}SO{sub 3}){sub 3}(aq) and Gd(CF{sub 3}SO{sub 3}){sub 3}(aq) have been measured at 278 K, 298 K, and 318 K at pressures of 0.1 MPa, 7.0 MPa, and 30.0 MPa using vibrating-tube densimeters. Apparent molar volumes obtained from the density data have been fitted to the Pitzer equation. The standard partial molar volumes V{sub {phi}}{sup {infinity}} and the ion-interaction parameters {beta}{sup (0)V} and {beta}{sup (1)V} have been determined through least-squares fitting to the experimental results. The standard partial molar volume of the trifluoromethanesulfonate anion V{sub {phi}}{sup {infinity}}(CF{sub 3}SO{sub 3}{sup {minus}},aq) was calculated at 298 K and 0.1 MPa from the partial molar volumes of the gadolinium and lanthanum salts and the available values for the standard partial molar volumes of the cations. Excellent agreement is obtained for V{sub {phi}}{sup {infinity}}(CF{sub 3}SO{sub 3}{sup {minus}},aq) calculated from the data for the two salts.},
doi = {10.1021/je960107v},
url = {https://www.osti.gov/biblio/378022}, journal = {Journal of Chemical and Engineering Data},
number = 5,
volume = 41,
place = {United States},
year = {1996},
month = {9}
}