A Thermodynamic model for the solubility of NpO2(am) in the aqueous K+-HCO3--CO32--OH --H2O system

Radiochimica Acta

Volumn 84, Issue 3, 1999, Pages 159-169

  Rai, Dhanpat ^a   Hess, Nancy J ^a   Felmy, Andrew R ^a   Moore, Dean A ^a   Yui, Mikazu ^b  

^a PACIFIC NORTHWEST NATIONAL LABORATORY   (United States)

^b JAPAN ATOMIC ENERGY AGENCY   (Japan)

Author keywords

Carbonate complexes; Np(CO3)56 ; Np(IV) hydrous oxide; NpO2(am); Solubility; Thermodynamics

Indexed keywords

EID: 0000477408     PISSN: 00338230     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (9)

1. 2O(am) in the Presence of Cu(I)/Cu(II) Redox Buffer. Radiochim. Acta 42, 35-41 (1987).
2. 2O Media. Geochim. Cosmochim. Acta 58, 613-623 (1994).
3. 3 Solutions. J. Solution Chemistry 26, 233-248 (1997).
4. 2O System. Radiochim. Acta 82, 17-25 (1998).
5. Rai, D., Ryan, J. L.: Neptunium(IV) Hydrous Oxide Solubility Under Reducing and Carbonate Conditions. Inorg. Chem. 24, 247-251 (1985).
6. Moskvin, A. I.: Complex Formation by Neptunium(IV) and Plutonium(IV) in Nitrate Solutions. Russ. J. Inorg. Chem. 16, 405 (1971).
7. Moskvin, A. I., Gelman, A. D.: Determination of the Composition and Instability Constants of Oxalate and Carbonate Complexes of Plutonium(IV). Russ. J. Inorg. Chem. 4, 198-216 (1958).
8. Kim, J. I., Lierse, C. H., Baumgartner, F.: Complexation of the Plutonium(IV) Ion in Carbonate-Bicarbonate Solutions. ACS Symp. Ser. 216, 318 (1983).
9. Vitorge, P.: Neptunium in Reducing Concentrated Carbonate Solutions: Bibliography for OECD-NEA-TDB. ISSN 0429-3460, CEA-BIB-246, Commissariat à l'Energie Atomique, France 1995.