Výsledky vyhledávání - "V. G. Pastushchak"

Kinetics of Pu(IV) reduction with tert-butylhydrazine

Autor: V. G. Pastushchak, G. V. Koltunov, V. S. Koltunov

Publikováno v: Radiochemistry. 48:348-351

The rate of Pu(IV) reduction with tert-butylhydrazine in an HNO3 solution is described by the equation-d[Pu(IV)]/dt = k[Pu(IV)]2[(CH3)3CN2H4+]/[H+], where k = 69.4 ⊥ 3.0 l mol−1 min−1 at 50°C. The activation energy is E = 122 ⊥ 4 kJ mol−1.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8700b0bb1ee65fc00ad7d250d551b725
https://doi.org/10.1134/s1066362206040060

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Kinetics and Mechanism of Pu(VI) Reduction with Acetaldoxime in Nitric Acid Solution

Autor: E. A. Mezhov, V. S. Koltunov, V. G. Pastushchak, G. V. Koltunov

Publikováno v: Radiochemistry. 47:69-73

Reduction of Pu(VI) to Pu(III) with acetaldoxime (CH3CHNOH) in an HNO3 solution involves three consecutive steps Pu(VI) → Pu(V) → Pu(IV) → Pu(III), and also reproportionation of Pu(IV). Complete kinetics equations of these steps were derived an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8342cebe802158ebc70a6e0bcc2f3332
https://doi.org/10.1007/s11137-005-0050-5

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Kinetics of Reactions of Np and Pu Ions with Hydrazine Derivatives: XVII. Reaction of Pu(VI) with Hydroxyethylhydrazine

Autor: V. S. Koltunov, V. G. Pastushchak, G. V. Koltunov, E. A. Mezhov

Publikováno v: Radiochemistry. 46:125-130

Reduction of Pu(VI) to Pu(III) with hydroxyethylhydrazine (HOC2H4N2H3) in HNO3 solutions involves the following consecutive steps2: Pu(VI) + HOC2H4N2H4 → Pu(V) + ...; Pu(V) + HOC2H4N2H4+ → Pu(IV) + ...; Pu(V) + Pu(III) → 2Pu(IV); and Pu(IV) + H

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::764a16477c65f0f195eb207dbe0380c0
https://doi.org/10.1023/b:rach.0000024936.87231.c0

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[Untitled]

Autor: V. G. Pastushchak, V. S. Koltunov, S. M. Baranov

Publikováno v: Radiochemistry. 44:541-545

3,3'-Bis(diaziridinyl), H2N2C2H2N2H2, is oxidized with Pu(IV) ions in excess of reductant to bis(diazirinyl), N2C2H2N2, and in excess of oxidant, to nitrogen and acetic acid. The reaction rate in the HNO3 solution at a constant ionic strength is desc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f2bb961038e6f1ed685c601a9c021c1
https://doi.org/10.1023/a:1022372124550

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