Kinetics of the reaction between boron trifluoride methanol complex and sodium methoxide to produce enriched 10B methylborate

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• 作者：Wuke Lang 郎五卿/a> ; Weijiang Zhang 张卫毿/a> ; Yin Tang 咿鑿/a>…
• 关键词：boron trifluoride methanol complex ; sodium methoxide ; conductivity ; kinetics
• 刊名：Transactions of Tianjin University
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：22
• 期：2
• 页码：139-143
• 全文大小：519 KB
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• 作者单位：Wuke Lang 郎五可 (1) (2)
  Weijiang Zhang 张卫江 (1)
  Yin Tang 唐 银 (1)
  Jiao Xu 徐 姣 (1)
  Lei Zhang 张 雷 (3)
  
  1. School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
  2. College of Chemistry and Life Science, Weinan Normal University, Weinan, 714099, China
  3. School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, 110000, China
  
• 刊物类别：Engineering
• 刊物主题：Chinese Library of Science
  
• 出版者：Tianjin University
• ISSN：1995-8196

文摘

The relation of boron trifluoride concentration with conductivity in boron trifluoride methanol solution (BF₃-CH₃OH)was power exponent fitted in low concentration range. The kinetics of the reaction between boron trifluoride methanol complex and sodium methoxide to produce enriched 10B methylborate was proposed based on a detailed mechanism study, and was verified by acid-base titration method and conductivity method. It was found that this reaction is first order reaction and the rate constant is 0.022 min−1 at 338 K(65 °C), the activity energy is 65 kJ/mol. In addition, it was found that the conductivity method is more feasible to measure the kinetic curve than acid-base titration method.