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Mechanism of thermal decomposition and high-temperature reactions of chlorofluoromethane

  • Physical Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    It has been found that chlorofluoromethane will react with hydrogen halides and dihalocarbenes on Pt and quartz at temperatures below that required for thermal breakdown of CH2FCl itself (500–700°C), di-halomethanes (CH2FX) and trihaloethylenes (CFX = CHF), the products of formal insertion and fluoromethylene recombination, being obtained at high yields. Free-state fluorocarbene formation was not observed.

  2. 2.

    With wall effects eliminated, the kinetic data indicated that CH2FCl pyrolysis at 730–900°C proceeds through a monomolecular mechanism leading to the formation of: CHF and HCl. A mathematical expression for the rate constant for the first-order CH2FCl decomposition has been obtained.

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Literature cited

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Authors and Affiliations

  1. N. D. Zelinskii Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow

    I. D. Kushina, S. F. Politanskii, V. U. Shevchuk, A. A. Ivashenko & O. M. Nefedov

Authors
  1. I. D. Kushina
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  2. S. F. Politanskii
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  3. V. U. Shevchuk
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  4. A. A. Ivashenko
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  5. O. M. Nefedov
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1484–1490, July, 1977.

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Kushina, I.D., Politanskii, S.F., Shevchuk, V.U. et al. Mechanism of thermal decomposition and high-temperature reactions of chlorofluoromethane. Russ Chem Bull 26, 1363–1369 (1977). https://doi.org/10.1007/BF00928505

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  • DOI: https://doi.org/10.1007/BF00928505

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