americium(243) trioxide | 23323-79-7

• 英文名称: americium(243) trioxide
• 英文别名: Americium hydroxide (Am(OH)3)；americium;trihydrate
• CAS: 23323-79-7
• 化学式: AmO₃
• 分子量: 290.998
• InChiKey: YWUZEQVAJGTDDQ-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  氧气 、 (241)Am(III) nitrate 在 Hg 作用下， 以 硝酸 为溶剂， 生成 americium(IV) oxide 、 、 americium(243) trioxide
  参考文献：
  名称：

  Preparation of volatile oxygen-containing americium compounds separated by gas thermochromatography

  摘要：

  Gas thermochromatographic experiments aimed to prepare volatile oxygen-containing americium compounds were performed. Under the experimental conditions, Am formed three volatile compounds: AmO2, previously unknown trioxide AmO3, and, presumably, acid of the composition H2AmO4, with centers of the adsorption zones at similar to 475, similar to 315, and similar to 140 degrees C. The calculated enthalpies of adsorption -Delta H-a(0) of these compounds on the quartz surface (kJ mol(-)1()) are 180 +/- 10, 144 +/- 7, and 109 +/- 8, respectively. Americium di- and trioxide are less volatile than the respective oxides of U, Np, and Pu. The same trend was observed with the presumed acids.

  DOI：

  10.1134/s1066362210030021