Complex formation between protactinium(V) and sulfate ions at 10 and 60 °C

被引：8

作者：

Di Giandomenico, M. V. ^{[1
]}

Le Naour, C. ^{[1
]}

机构：

[1] Univ Paris 11, Inst Phys Nucl, CNRS, F-91406 Orsay, France

来源：

INORGANICA CHIMICA ACTA | 2009年 / 362卷 / 09期

关键词：

Protactinium; Sulfate; SIT; Formation constants; Solvent extraction; TOLUENE; PROTOACTINIUM; PROPYLBENZENE; ETHYLBENZENE; SOLUBILITIES; NP(V); WATER;

D O I：

10.1016/j.ica.2009.02.033

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Protactinium complexation with sulfate ions was studied with the element at tracer scale (C-Pa similar to 10 (12) M) by solvent extraction method. The involved aqueous system was Pa(V)/H2O/HClO4/Na2SO4/NaClO4 at 10 and 60 degrees C. The extraction experiments were conducted using the chelating agent thenoyltrifluoroacetone (TTA) in toluene. For both values of temperature, a systematic study was performed in order to determine the formation constants (beta(1), beta(2) and beta(3)) of sulfate complexes of Pa(V) at different ionic strength. For each temperature, the extrapolation of these constants to zero ionic strength was performed using the Specific Interaction Theory, leading to values log beta(0)(1); log beta(0)(2); log beta(0)(3) of 2.8 +/- 0.5, 6.5 +/- 0.5, 7.8 +/- 0.5 at 10 degrees C and 4.3 +/- 0.3, 8.4 +/- 1.3, 9.6 +/- 0.4 at 60 degrees C. Interaction coefficients involving the sulfate complexes of protactinium(V) were also derived. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：3253 / 3258

页数：6

共 31 条

[21]

Muxart R., 1974, COMPLEMENTS NOUVEAU, V2

[22]

Myasoedov B.F., 2006, CHEM ACTINIDE TRANSA, P161, DOI 10.1007/1-4020-3598-5_4

[23] KOMPLEXBILDUNG VON PROTAKTINIUM (V) MIT SULFAT- UND NITRATIONEN [J].

NOWIKOW, J ;

PFREPPER, G .

ZEITSCHRIFT FUR NATURFORSCHUNG PART B-CHEMIE BIOCHEMIE BIOPHYSIK BIOLOGIE UND VERWANDTEN GEBIETE, 1963, B 18 (12) :993-&

[24] Potential of thorium molten salt reactors: Detailed calculations and concept evolution with a view to large scale energy production [J].

Nuttin, A ;

Heuer, D ;

Billebaud, A ;

Brissot, R ;

Le Brun, C ;

Liatard, E ;

Loiseaux, JM ;

Mathieu, L ;

Meplan, O ;

Merle-Lucotte, E ;

Nifenecker, H ;

Perdu, F ;

David, S .

PROGRESS IN NUCLEAR ENERGY, 2005, 46 (01) :77-99

[25] THE EFFECTS OF SALTS ON THE SOLUBILITIES OF BENZENE, TOLUENE, ETHYLBENZENE, AND PROPYLBENZENE IN WATER [J].

SANEMASA, I ;

ARAKAWA, S ;

ARAKI, M ;

DEGUCHI, T .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1984, 57 (06) :1539-1544

[26]

SAPIESZKO RS, 1977, J PHYS CHEM-US, V51, P1751

[27]

Sohnel O., 1985, DENSITIES AQUEOUS SO

[28] Hydrolysis of protactinium(V). III. Determination of standard thermodynamic data [J].

Trubert, D ;

Le Naour, C ;

Jaussaud, C ;

Mrad, O .

JOURNAL OF SOLUTION CHEMISTRY, 2003, 32 (06) :505-517

[29]

WANNER H, 1998, GUIDELINES ASSIGNMEN

[30] Stability constants of Np(V) complexes with fluoride and sulfate at variable temperatures [J].

Xia, Y. ;

Friese, J. I. ;

Moore, D. A. ;

Rao, L. .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2006, 268 (03) :445-451

← 1 2 3 4 →