Tetrauranium nova oxide - tetrauranium nova oxide

Japanese: 九酸化四ウラン - きゅうさんかしうらん
Tetrauranium nova oxide - tetrauranium nova oxide

...Insoluble in water and dilute acids, but easily soluble in concentrated nitric acid and perchloric acid.
[Tetrauranium nonoxide]
Chemical formula : U4O9 . It has a superlattice structure in which excess oxygen is inserted between the lattices of UO3 crystals.

*Some of the terminology explanations that mention "tetrauranium nonoxide" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…水,希酸に不溶,濃硝酸,過塩素酸には容易に溶ける。
[九酸化四ウラン]
 化学式U4O9。UO3の結晶に過剰の酸素が格子の間に入り込んだ超格子構造をもっている。…

※「九酸化四ウラン」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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