<報文>ウランおよびトリウム化合物の高温における挙動について(第1報) : 硫酸ウラニル, 硫酸トリウムの熱分解について

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  • ウラン オヨビ トリウム カゴウブツ ノ コウオン ニ オケル キョドウ ニ ツイテ 1
  • <Original Papers>On the Properties of Uranium and Thorium Compounds at High Temperature. (I) : On the Thermal Decompositions of Uranyl and Thorium Sulfates

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The thermal decompositions of uranyl and thorium sulfates were investigated in a neutral atmosphere with thermogravimetric technique. Purified nitrogen having a constant flow rate was sent into the reaction vessel and pumped out through the O' Gorman's pressure controlling system. Then the reaction vessel could be maintained under constant pressure of a neutral atmosphere for several hours. Samples in the reaction vessel were heated with an electric furnace and the weight change was observed with a quartz spring thermobalance. The results obtained are summarised in the following formulae showing the relation between the decomposition pressure and temperature : [numerical formula]

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