Solubility of Np(V) in K-Cl-CO3 and Na-K-Cl-CO3 Solutions to High Concentrations: Measurements and Thermodynamic Model Predictions

Radiochimica Acta

Volumn 81, Issue 2, 1998, Pages 93-101

  Mahamid, Ilham Al ^a   Novak, Craig F ^b,c   Becraft, Kevin A ^a   Carpenter, Scott A ^a   Hakem, Nadia ^a  

^a LAWRENCE BERKELEY NATIONAL LABORATORY   (United States)

^b SANDIA NATIONAL LABORATORIES   (United States)

^c NONE   (United States)

Author keywords

Activity coefficients; Brine; Concentrated electrolytes; Np(V); Solubility; Thermodynamics

Indexed keywords

EID: 1542677921     PISSN: 00338230     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (9)

1. 3 Solutions to High Concentrations. J. Sol. Chem. 26, 681-697 (1997).
2. 2O System to High Ionic Strengths at 25°C. Geochim. Cosmochim. Acta 48, 723-751 (1984).
3. Felmy, A. R., Weare, J. H.: The Prediction of Borate Mineral Equilibria in Natural Waters: Application to Searles Lake, California. Geochim. Cosmochim. Acta 50, 2771-2783 (1986).
4. Pitzer, K. S.: Ion Interaction Approach: Theory and Data Correlation. In Activity Coefficients in Electrolyte Solutions (ed. K. S. Pitzer), Chap. 3, pp. 75-153. CRC Press (1991).
5. Novak, C. F., Nitsche, H., Silber, H. B., Roberts, K., Torretto, Ph. C., Prussin, T., Becraft, K. A., Carpenter, S. A., Hobart, D. E., Al Mahamid, I.: Neptunium(V) and Neptunium(VI) Solubilities in Synthetic Brines of Interest to the Waste Isolation Pilot Plant (WIPP). Radiochim. Acta 74, 31-36 (1996).
6. 3 Solutions to High Concentrations: Measurements and Thermodynamic Model Predictions." SAND97-1230J. Albuquerque, NM: Sandia National Laboratories (1997).
7. Babb, S. C., Novak, C. F. : FMT, version 2.00, User's Manual. WIPP Project Report SWCF WPO 28119, Sandia National Laboratories (1995).
8. Fanghänel, Th., Neck, V., Kim, J. I.: Thermodynamics of Neptunium(V) in Concentrated Salt Solutions: II. Ion Interaction (Pitzer) Parameters for Np(V) Hydrolysis Species and Carbonate Complexes. Radiochim. Acta 69, 169-173 (1995).
9. 4 Electrolytes. Report SAND94-1949, Sandia National Laboratories (1995).