Interaction of thorium(IV) with nitrate in aqueous solution: medium effect or weak complexation?

被引：11

作者：

Di Bernardo, Plinio ^{[1
]}

Zanonato, Pierluigi ^{[1
]}

Rao, Linfeng ^{[2
]}

Bismondo, Arturo ^{[3
]}

Endrizzi, Francesco ^{[1
]}

机构：

[1] Univ Padua, Dipartimento Sci Chim, I-35131 Padua, Italy

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[3] CNR, Ist Chim Inorgan & Superfici, I-35127 Padua, Italy

来源：

DALTON TRANSACTIONS | 2011年 / 40卷 / 36期

关键词：

TRIVALENT LANTHANIDE; SOLVENT-EXTRACTION; FUEL-CYCLE; URANIUM(VI); ACETATE; THERMODYNAMICS; POWER; ION;

D O I：

10.1039/c1dt10325c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Microcalorimetric titrations were performed to study the Th(IV)/nitrate interaction in aqueous solution. The results show the formation of a weak mononuclear complex of Th(IV) with nitrate and allow the determination of the complexation thermodynamic parameters at 298 K and ionic strength 1.0 mol dm(-3). The reaction is endothermic and entropy driven. Data and comparison with similar actinide(IV) complexes allow to confirm the inner-sphere nature of the Th(NO3)(3+) complex.

引用

页码：9101 / 9105

页数：5

共 41 条

[1] Characterization of aqueous plutonium(IV) nitrate complexes by extended x-ray absorption fine structure spectroscopy [J].

Allen, PG ;

Veirs, DK ;

Conradson, SD ;

Smith, CA ;

Marsh, SF .

INORGANIC CHEMISTRY, 1996, 35 (10) :2841-2845

[2]

[Anonymous], ARK KEMI

[3]

[Anonymous], 2002, P 3 IAEA M HELD VIEN

[4]

[Anonymous], 1992, CHEM THERMODYN

[5]

[Anonymous], 2007, CHEM THERMODYNAMICS

[6]

[Anonymous], 2001, CHEM THERMODYN

[7]

Benedict G., 1980, ACS SYM SER, V117, P371

[8] Study of thorium advanced fuel cycle utilization in light water reactor VVER-440 [J].

Breza, Juraj ;

Darilek, Petr ;

Necas, Vladimir .

ANNALS OF NUCLEAR ENERGY, 2010, 37 (05) :685-690

[9] Studies on solubility IV The principle of the specific interaction of ions [J].

Bronsted, JN .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1922, 44 :877-898

[10] Calculation of the osmotic and activity functions in solutions of uni-univalent salts [J].

Bronsted, JN .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1922, 44 :938-948

← 1 2 3 4 5 →