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<p>An inert gas fusion (IGF) method was developed for quantifying oxygen in solidified LiCl-based salts, addressing critical limitations of titration and electrochemical techniques. This approach enables accurate, <i>ex</i>&#xa0;<i>situ</i> oxygen measurement and is compatible with low-temperature analysis. Calibration using both metal and salt standards demonstrated high precision across a wide oxygen concentration range, with a second-order polynomial model yielding R<sup>2</sup> = 0.9977 and deviations below 0.09&#xa0;wt%. The method’s sensitivity and reliability make it a practical tool for oxygen&#xa0;quantification in chloride salts, and establish a basis for future work on hydroxide and water determination in chloride salt systems relevant to nuclear processing.</p>

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Development of an inert gas fusion analytical method for oxygen quantification in chloride salts

  • 期刊论文

  • 发表日期：

    2025年11月20日

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  • Mario Alberto Gonzalez,
  • Cam Leavitt,
  • Jacob A. Yankey,
  • Michael F. Simpson

摘要

An inert gas fusion (IGF) method was developed for quantifying oxygen in solidified LiCl-based salts, addressing critical limitations of titration and electrochemical techniques. This approach enables accurate, ex situ oxygen measurement and is compatible with low-temperature analysis. Calibration using both metal and salt standards demonstrated high precision across a wide oxygen concentration range, with a second-order polynomial model yielding R2 = 0.9977 and deviations below 0.09 wt%. The method’s sensitivity and reliability make it a practical tool for oxygen quantification in chloride salts, and establish a basis for future work on hydroxide and water determination in chloride salt systems relevant to nuclear processing.