Scholarlink

<p>Current methods of synthesizing unblended UCl<sub>3</sub> have significant safety and contamination concerns due to the use of hazardous gaseous components or the potential for formation of UCl<sub>4</sub> or uranium oxides and oxychlorides. A new method for chlorinating uranium hydride in the solid state without hazardous gas that favors the +3 oxidation state is reported. This process forms UCl<sub>3</sub> via a two-step reaction using solid NH<sub>4</sub>Cl powder and UH<sub>3</sub>. The first step involves heating to 593&#xa0;K to form an ammonium-uranium-chloride intermediate. In the second step, the intermediate is thermally decomposed by heating to 923&#xa0;K under ambient pressure in an argon atmosphere to form UCl<sub>3</sub>. Cl/U ratios of product ranged from 2.8 to 3.1.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Ambient pressure UCl3 synthesis starting with a mixed bed of NH4Cl and uranium hydride

  • 期刊论文

  • 发表日期：

    2025年8月21日

查看全文
  • Nathan Rood,
  • Michael F. Simpson

摘要

Current methods of synthesizing unblended UCl3 have significant safety and contamination concerns due to the use of hazardous gaseous components or the potential for formation of UCl4 or uranium oxides and oxychlorides. A new method for chlorinating uranium hydride in the solid state without hazardous gas that favors the +3 oxidation state is reported. This process forms UCl3 via a two-step reaction using solid NH4Cl powder and UH3. The first step involves heating to 593 K to form an ammonium-uranium-chloride intermediate. In the second step, the intermediate is thermally decomposed by heating to 923 K under ambient pressure in an argon atmosphere to form UCl3. Cl/U ratios of product ranged from 2.8 to 3.1.