Kinetics of Reactions of Np and Pu Ions with Hydrazine Derivatives: XVIII. Reaction between Np(V) and Hydroxyethylhydrazine

Autor:	G. V. Koltunov, V. S. Koltunov, S. M. Baranov
Rok vydání:	2005
Předmět:	Chemical kinetics Methylhydrazine Reaction mechanism Electron transfer Chemistry Ionic strength Physical chemistry Activation energy Physical and Theoretical Chemistry Energy source Chemical reaction Nuclear chemistry
Zdroj:	Radiochemistry. 47:168-172
ISSN:	1608-3288 1066-3622
DOI:	10.1007/s11137-005-0066-x
Popis:	The kinetics of the reaction between Np(VI) and methylhydrazine obeys the equation -d(Np(VI))/dt = k (Np(VI))/(CH/sub 3/N/sub 2/H/sub 4//sup +/)/(H/sup +/), where k = 32.1 +/- 1.8 and 52.7 +/- 1.7 min/sup -5/ at 25/sup 0/C and ionic strength ..mu.. = 2 and the activation energy is 56.9 +/- 0.8 and 58.6 +/- 0.4 kJ/mole in HClO/sub 4/ HNO/sub 3/ solutions respectively. The reaction mechanism includes a slow stage of electron transition between the NpO/sub 2//sup 2 +/ ions and the CH/sub 3/N/sub 2/H/sub 3/ molecules. The methyldiazenium cations formed at this stage subsequently decompose or are oxidized by the NpO/sub 2//sup 2 +/ ions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d3e5b1e29972bf35ae2ce069da8ad761 https://doi.org/10.1007/s11137-005-0066-x Zobrazit plný text záznamu Plný text ve formátu PDF