Thermal and Radiation Stability of Extractive Mixtures Based on Todgaстатья
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Дата последнего поиска статьи во внешних источниках: 25 ноября 2020 г.
Аннотация:The method of diff erential scanning calorimetry has been used to study the thermal stability of unirradiated and irradiated extractive mixtures containing 0.15 М of the extractive agent N,N,Nʹ,Nʹ-tetra-octyldiglycol(TODGA) in Isopar-M diluent with n-decanol or n-nonanol in relation to the sequence of contact with nitric acid. It was shown that heating within the range 50–250°С causes exothermic thermochemical processes in the starting extractive systems in the presence of nitric acid. The radiolysis stimulates the decomposition of an organic solution with release of gaseous products and changes both the thermal stability of the solutions under study and their interaction with nitric acid.