Thermal Stability of Dibenzo-21-crown-7 and Its Solution in 1,2-Dichloroethane in Contact with Nitrogen Dioxide

IF 0.9 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Radiochemistry Pub Date : 2024-10-06 DOI:10.1134/S1066362224040076

A. M. Koscheeva, K. V. Shelamov, A. V. Rodin, A. V. Ananiev

引用次数: 0

Abstract

The thermal stability of dibenzo-21-crown-7 (DB21C7) and its solution in 1,2-dichloroethane (DCE) after contact with nitrogen dioxide, which is a product of nitric acid degradation, was studied. It is shown that exothermic processes accompanied by the release of gaseous products are observed in inert and oxidizing atmosphere. The compounds formed after contact with nitrogen dioxide were determined by gas chromatography–mass spectrometry. Differences in gaseous products in the temperature range of 300℃ were defined for the initial crown ether and for DB21С7 and its solution in DСE after contact with NO₂.

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二苯并-21-冠醚-7 及其在 1,2-二氯乙烷中的溶液与二氧化氮接触时的热稳定性

研究了二苯并-21-冠醚-7（DB21C7）及其在 1,2-二氯乙烷（DCE）中的溶液与二氧化氮（硝酸降解的产物）接触后的热稳定性。结果表明，在惰性和氧化气氛中，会出现伴随气态产物释放的放热过程。通过气相色谱-质谱法测定了与二氧化氮接触后形成的化合物。确定了初始冠醚和 DB21С7 及其与二氧化氮接触后的 DСE 溶液在 300℃温度范围内的气态产物差异。

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来源期刊

Radiochemistry CHEMISTRY, INORGANIC & NUCLEAR-

CiteScore

1.30

自引率

33.30%

发文量

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.