A spectrophotometric study on uranyl nitrate complexation to 150 °C

被引：17

作者：

Suleimenov, O. M. ^{[1
]}

Seward, T. M. ^{[1
]}

Hovey, J. K. ^{[1
]}

机构：

[1] ETH, Inst Mineral & Petrog, CH-8092 Zurich, Switzerland

来源：

JOURNAL OF SOLUTION CHEMISTRY | 2007年 / 36卷 / 09期

关键词：

stability constants; uranyl nitrate; spectrophotometric; aqueous solution;

D O I：

10.1007/s10953-007-9175-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The formation constant of the mononitratouranyl complex was studied spectrophotometrically at temperatures of 25, 40, 55, 70, 100 and 150 degrees C (298, 313, 328, 343, 373 and 423 K). The uranyl ion concentration was fixed at approximately 0.008 mol center dot kg(-1) and the ligand concentration was varied from 0.05 to 3.14 mol center dot kg(-1). The uranyl nitrate complex, UO2NO3+, is weak at 298 K but its equilibrium constant (at zero ionic strength) increases with temperature from log(10) beta(1)=-0.19 +/- 0.02 (298 K) to 0.78 +/- 0.04 (423 K).

引用

页码：1093 / 1102

页数：10

共 23 条

[1] ON THE COMPLEX CHEMISTRY OF THE URANYL ION .6. THE COMPLEXITY OF URANYL CHLORIDE, BROMIDE AND NITRATE
AHRLAND, S
[J]. ACTA CHEMICA SCANDINAVICA, 1951, 5 (9-10): : 1271 - 1282
[2] ASSOCIATION OF URANIUM(VI) WITH ANIONS IN AQUEOUS PERCHLORIC ACID MEDIUM
BANERJEA, D
TRIPATHI, KK
[J]. JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1961, 18 : 199 - 206
[3] Betts R. H., 1949, J CHEM SOC, pS286, DOI DOI 10.1039/JR949000S286
[4] Bevington P., 2002, Data Reduction and Error Analysis for the Physical Sciences, V3rd ed.
[5] Studies on solubility IV The principle of the specific interaction of ions
Bronsted, JN
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1922, 44 : 877 - 898
[6] RAMAN-SPECTROSCOPIC STUDIES OF AQUEOUS URANYL-NITRATE AND PERCHLORATE SYSTEMS
BROOKER, MH
HUANG, CH
SYLWESTROWICZ, J
[J]. JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1980, 42 (10): : 1431 - 1440
[7] EXTRACTION OF URANYL ION FROM SOME AQUEOUS SALT SOLUTIONS WITH 2-THENOYLTRIFLUOROACETONE
DAY, RA
POWERS, RM
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1954, 76 (15) : 3895 - 3897
[8] SINGULAR VALUE DECOMPOSITION AND LEAST SQUARES SOLUTIONS
GOLUB, GH
REINSCH, C
[J]. NUMERISCHE MATHEMATIK, 1970, 14 (05) : 403 - &
[9] GRANZHAN VA, 1975, ZH FIZ KHIM, V49, P2461
[10] Guggenheim E.A., 1966, APPL STAT MECH

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