First calorimetric determination of heat of extraction of 248Cm in a bi-phasic system

Leigh R. Martin ; Peter R. Zalupski

关键词: CURIUM;    KINETICS;    SAMARIUM;    THERMODYNAMICS Calorimetry;    Curium;    Heat of extraction;   

DOI  :  10.2172/1027936
RP-ID  :  INL/EXT-11-22556
PID  :  OSTI ID: 1027936
Others  :  TRN: US1105903

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

This report presents a summary of the work performed to meet FCR&D level 2 milestone M21SW050201, 'Complete the first calorimetric determination of heat of extraction of 248Cm in a bi-phasic system'. This work was carried out under the auspices of the Thermodynamics and Kinetics FCR&D work package. To complement previous work undertaken under this work package we have extended out heat of extraction studies by di-2-ethyl-hexyl-phosphoric acid to curium. This report also details the heat of extraction of samarium in the same system. This work was performed to not only test the methodology but also to check for consistency with the heats of extraction obtained with those in the prior literature. The heat of extraction for samarium that was obtained in this study was -9.6 kJ mol-1, which is in reasonable agreement with the previously obtained value of -10.9 kJ mol-1. The curium heat of extraction was performed under two sets of conditions and the obtained heats of extraction were in reasonable agreement with each other at -16.0 {+-} 1.1 and -16.8 {+-} 1.5 kJ mol-1.