{"title":"Effect of monomethylhydrazine on γ-rays radiolysis and radiolytic by-products of N,N-diethylhydroxylamine in nitric acid solution","authors":"Zhu Li, Jinhua Wang, Ying Wan, Zhen Li, Weifang Zheng, Hui He","doi":"10.1007/s10967-024-09661-w","DOIUrl":null,"url":null,"abstract":"<p><i>N</i>,<i>N</i>-diethylhydroxylamine (DEHA) is a new salt-free reducing agent applied in the separation of Pu from U in the reprocessing of irradiated fuel from nuclear power plants. The effect of monomethylhydrazine (MMH) on the γ-rays radiolysis of DEHA-HNO<sub>3</sub> solution is presented in this paper. MMH can effectively enhance DEHA stability against radiation, and the main radiolytic products are H<sub>2</sub>, CH<sub>4</sub>, CH<sub>3</sub>CHO, CH<sub>3</sub>COOH and HNO<sub>2</sub>. The content of H<sub>2</sub>, CH<sub>4</sub>, CH<sub>3</sub>CHO and CH<sub>3</sub>COOH is raised with the dose. The amount of H<sub>2</sub>, CH<sub>4</sub> and CH<sub>3</sub>CHO enhances with the MMH concentration, but CH<sub>3</sub>COOH concentration is reduced when MMH concentration is raised.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Radioanalytical and Nuclear Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s10967-024-09661-w","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
N,N-diethylhydroxylamine (DEHA) is a new salt-free reducing agent applied in the separation of Pu from U in the reprocessing of irradiated fuel from nuclear power plants. The effect of monomethylhydrazine (MMH) on the γ-rays radiolysis of DEHA-HNO3 solution is presented in this paper. MMH can effectively enhance DEHA stability against radiation, and the main radiolytic products are H2, CH4, CH3CHO, CH3COOH and HNO2. The content of H2, CH4, CH3CHO and CH3COOH is raised with the dose. The amount of H2, CH4 and CH3CHO enhances with the MMH concentration, but CH3COOH concentration is reduced when MMH concentration is raised.
期刊介绍:
An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.