Kinetics of Pu(IV) reduction with zinc amalgam in sulfuric acid solutions

Autor: V. N. Momotov, E. A. Erin, V. M. Chistyakov
Rok vydání: 2015
Předmět:
Zdroj: Radiochemistry. 57:403-408
ISSN: 1608-3288
1066-3622
DOI: 10.1134/s1066362215040116
Popis: The kinetics of Pu(IV) reduction with zinc amalgam under different conditions [H2SO4 concentration 0.5–4.0 M, initial Pu(IV) concentration (1.11–4.80) × 10−3 M, temperature 294.0–323.0 K] was studied by spectrophotometry. The kinetic scheme of the Pu(IV) transformation and the rate law were suggested, and the reduction rate constants were determined. The activation energies Ea and the thermodynamic functions of formation of the activated complex (activation Gibbs energy ΔG≠, enthalpy ΔH≠, entropy ΔS≠) were determined.
Databáze: OpenAIRE