Kinetics of the Reaction Between Boron Trifluoride Methanol Complex and Sodium Methoxide to Produce Enriched ^（10）B Methylborate

The relation of boron trifluoride concentration with conductivity in boron trifluoride methanol solution（BF_3-CH_3OH）was power exponent fitted in low concentration range. The kinetics of the reaction between boron trifluoride methanol complex and sodium methoxide to produce enriched ~（10）B methylbor...

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Published in天津大学学报：英文版 Vol. 22; no. 2; pp. 139 - 143
Main Author 郎五可 张卫江 唐银 徐姣 张雷
Format Journal Article
LanguageEnglish
Published 2016
Subjects
一级反应
三氟化硼
动力学曲线
反应速率常数
浓度范围
甲醇钠
络合物
酸碱滴定法
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ISSN1006-4982
1995-8196

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Summary:The relation of boron trifluoride concentration with conductivity in boron trifluoride methanol solution（BF_3-CH_3OH）was power exponent fitted in low concentration range. The kinetics of the reaction between boron trifluoride methanol complex and sodium methoxide to produce enriched ~（10）B 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 ℃）, the activity energy is 65 k J/mol. In addition, it was found that the conductivity method is more feasible to measure the kinetic curve than acid-base titration method.
Bibliography:12-1248/T
Lang Wuke, Zhang Weijiang , Tang Yin , Xu Jiao, Zhang Lei （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）
boron trifluoride methanol complex; sodium methoxide; conductivity; kinetics
The relation of boron trifluoride concentration with conductivity in boron trifluoride methanol solution（BF_3-CH_3OH）was power exponent fitted in low concentration range. The kinetics of the reaction between boron trifluoride methanol complex and sodium methoxide to produce enriched ~（10）B 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 ℃）, the activity energy is 65 k J/mol. In addition, it was found that the conductivity method is more feasible to measure the kinetic curve than acid-base titration method.
ISSN:1006-4982
1995-8196