{"title":"Effect of Uranyl Nitrate on Exothermic Processes in Nitric Acid Solutions of Reductants","authors":"A. S. Ob”edkov, A. N. Grishaev, E. V. Belova","doi":"10.1134/S1066362225010114","DOIUrl":null,"url":null,"abstract":"<p>The thermal stability of nitric acid solutions of acetohydroxamic acid, carbohydrazide, hydrazine nitrate, and their mixtures was studied. The onset temperature of the exothermic reaction was determined, and the thermal effects of the reactions were calculated. The effect of uranyl nitrate on the thermal stability of reducing agents and their mixtures was studied. Comparison of the characteristics of exothermic processes in solutions with and without uranyl nitrate showed that the introduction of uranyl nitrate reduced the intensity of exothermic processes in all the nitric acid solutions studied.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"67 1","pages":"82 - 88"},"PeriodicalIF":1.0000,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiochemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1066362225010114","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
The thermal stability of nitric acid solutions of acetohydroxamic acid, carbohydrazide, hydrazine nitrate, and their mixtures was studied. The onset temperature of the exothermic reaction was determined, and the thermal effects of the reactions were calculated. The effect of uranyl nitrate on the thermal stability of reducing agents and their mixtures was studied. Comparison of the characteristics of exothermic processes in solutions with and without uranyl nitrate showed that the introduction of uranyl nitrate reduced the intensity of exothermic processes in all the nitric acid solutions studied.
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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