Estimation of Thermodynamic Properties of Binary Aqueous Electrolytic Solutions in the Range 25-100 °

Document Type

Article

Publication Date

7-1-1980

Abstract

The vapor pressure depression data (δP) of 53 aqueous electrolytes at 100 ° are correlated with the one-parameter (B) Bromley equation (eq 7). These B constants can be used to calculate mean ionic molai activity coefficients (γ±) up to 1= 6. In addition, these B values, along with those at 25 ° reported by Bromley, can lead to reliable estimates of δP and γ± in the range 25-100 °. Partial molai enthalpies, however, are only about 50% of the experimental value. For four systems, where complete dissociation can be assumed, the average absolute error in ΦL is 0.3 kcal/g-mol. For MgSOM4, where only partial dissociation occurs, the error is 1.5 kcal/g-mol. © 1980, American Chemical Society. All rights reserved.

Identifier

0019037654 (Scopus)

Publication Title

Industrial and Engineering Chemistry Process Design and Development

External Full Text Location

https://doi.org/10.1021/i260075a025

ISSN

01964305

First Page

477

Last Page

482

Issue

3

Volume

19

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