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

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Abstract

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.

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References

  1. Zhang Lei, Zhang Weijiang, Xu Jiao et al. Synthesis of enriched 10B boric acid of nuclear grade [J]. Transactions of Tianjin University, 2014, 20(6):458–462.

    Article  Google Scholar 

  2. Barnes R F, Diamond H, Fields P R. Preparation of Methyl Borate from Boron Trifluoride [R]. Atomic Energy Commission, USA, 1954.

    Book  Google Scholar 

  3. Lappert M F. Organic compounds of boron [J]. Chemical Reviews, 1956, 56(5):959–1064.

    Article  Google Scholar 

  4. Lang Wuke, Zhang Weijiang, Xu Jiao et al. Study of the reaction between boron trifluoride methanol complex and sodium methoxide [J]. Journal of Coordination Chemistry, 2014, 67(9):1530–1540.

    Article  Google Scholar 

  5. House H P, Lund J R, French J R et al. Methods of Analysis of Anisole-Boron Trifluoride Solutions [R]. ORNL-2014. Atomic Energy Commission, USA, 1956.

    Google Scholar 

  6. Csuros Zoltan, Deak Gyula, Fenichel Laszlo et al. Determination of boron trifluoride, titanium tetrachloride, and tin tetrachloride in their complexes by nonaqueous titration [J]. Acta Chimica Academiae Scientiarum Hungaricae, 1966, 50(1–4): 63–76.

    Google Scholar 

  7. Greenwood N, Martin R L. The electrochemistry of boron trifluoride co-ordination compounds. Part?: The system boron trifluoride-methanol [J]. J Chem Soc, 1953, 157:757–764.

    Article  Google Scholar 

  8. Zhang Yajuan, Ma Cha, Xu Jingkun et al. Mixed proton electrolyte in methanol containing boron trifluoride diethyl etherate [J]. Chemical Research, 2005, 16(2):26–28, 55.

    Google Scholar 

  9. Derouault J, Dziembowska T, Forel M T. Infrared and Raman investigation of the liquid addition compounds BF3-CH3OH and BF3-2CH3OH [J]. Journal of Molecular Structure, 1978, 47:59–63.

    Article  Google Scholar 

  10. Derouault J, Dziembowska T, Forel M T. Etude par spectroscopie Raman et ir des complexes moléculaires formes entre le trifluorure de bore et le methanol, Discussion de la dissociation ionique [J]. Spectrochimica Acta Part A: Molecular Spectroscopy, 1979, 35(7):773–786(in French).

    Article  Google Scholar 

  11. Servis K L, Jao L. Nuclear magnetic resonance studies of methanol-boron trifluoride complexes [J]. The Journal of Physical Chemistry, 1972, 76(3):329–334.

    Article  Google Scholar 

  12. Bowlus H, Nieuwland J A. The action of boron fluoride on organic compounds [J]. Journal of the American Chemical Society, 1931, 53(10):3835–3840.

    Article  Google Scholar 

  13. O'Leary L A, Wenzke H H. Reactions and properties of boron fluoride in methyl alcohol [J]. Journal of the American Chemical Society, 1933, 55(5):2117–2121.

    Article  Google Scholar 

  14. Paasivirta J, Brownstein S. Exchange reactions in the system boron trifluoride-methanol [J]. Journal of the American Chemical Society, 1965, 87(16):3593–3596.

    Article  Google Scholar 

  15. Wheeler C M, Beaulieu R D, Burns H W. Preparation of tetramethylammonium monohydroxyfluoborate [J]. Journal of the American Chemical Society, 1954, 76(24):6323–6324.

    Article  Google Scholar 

  16. Fang Chuliang. Conductivity Instrument [M]. Water Resources and Electric Power Press, Beijing, China, 1984(in Chinese).

    Google Scholar 

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Correspondence to Jiao Xu  (徐 姣).

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Supported by the Independent Innovation Fund of Tianjin University (No. 1307).

Lang Wuke, born in 1981, female, doctorate student.

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Lang, W., Zhang, W., Tang, Y. et al. Kinetics of the reaction between boron trifluoride methanol complex and sodium methoxide to produce enriched 10B methylborate. Trans. Tianjin Univ. 22, 139–143 (2016). https://doi.org/10.1007/s12209-016-2661-7

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  • DOI: https://doi.org/10.1007/s12209-016-2661-7

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