Estimating activity and osmotic coefficients in uo2(no3) 2 - hno3 - nano3mixtures

C. F. Baes; Bruce A. Moyer

doi:10.1080/07366298808917960

Estimating activity and osmotic coefficients in uo₂(no₃) ₂ - hno₃ - nano₃mixtures

C. F. Baes, Bruce A. Moyer

Chemical Separations Group

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The Pitzer treatment is employed to estimate activity and osmotic coefficients for these aqueous mixtures from literature data. A convenient formalism is presented for the inclusion of electrically neutral species such as undissociated HNO₃in the treatment. The water vapor pressure and the solubility of uranyl nitrate hexahydrate in HNO₃could be fitted reasonably well with parameters derived from solutions of the separate components. Isopiestic data for NaNO₃ - UO₂(NO₃)₂ mixtures required one mixture parameter. Stoichiometric activity coefficients and water activities are generated for UO₂(NO₃)₂ - HNO₃mixtures from the derived parameters.

Original language	English
Pages (from-to)	675-697
Number of pages	23
Journal	Solvent Extraction and Ion Exchange
Volume	6
Issue number	4
DOIs	https://doi.org/10.1080/07366298808917960
State	Published - Jan 1 1988

Funding

This work was sponsored by the Division of Chemical Sciences, Office of Basic Energy Sciences, U. S. Department of Energy under contract DE-AC05-840R21400 with Martin Marietta Energy Systems, Inc.

Funders	Funder number
Division of Chemical Sciences
Office of Basic Energy Sciences
U. S. Department of Energy	DE-AC05-840R21400

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10.1080/07366298808917960

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Estimating activity and osmotic coefficients in uo₂(no₃) ₂ - hno₃ - nano₃mixtures

Abstract

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