{"title":"Simulation of Thermal Decomposition of Acetohydroxamic Acid Nitrate Solution upon SNF Reprocessing","authors":"V. V. Kalistratova, A. V. Smirnov, E. V. Belova","doi":"10.1134/s1066362223050016","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A thermal analysis of an acetohydroxamic acid solution in 12 M HNO<sub>3</sub> was carried out. The activation energy, specific thermal effect, time and rate of the exothermic reaction, pre-exponential factor, starting temperature and self-heating value of the sample, pressure change and specific volume of released gases were determined. Under experimental conditions this reaction was found to occur in an autocatalytic mode. Based on experimental data, a kinetic equation for the reaction was derived, which was used to create a model of the reaction under various conditions. The reliability of the modeling results was verified by differential scanning calorimetry.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiochemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1134/s1066362223050016","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
A thermal analysis of an acetohydroxamic acid solution in 12 M HNO3 was carried out. The activation energy, specific thermal effect, time and rate of the exothermic reaction, pre-exponential factor, starting temperature and self-heating value of the sample, pressure change and specific volume of released gases were determined. Under experimental conditions this reaction was found to occur in an autocatalytic mode. Based on experimental data, a kinetic equation for the reaction was derived, which was used to create a model of the reaction under various conditions. The reliability of the modeling results was verified by differential scanning calorimetry.
期刊介绍：
Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.
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