Mass spectrometric study of reactive intermediates formed by vacuum pyrolysis of RHgCCl3 compounds

K. Ujszászy, J. Tamás, N. D. Kagramanov, A. K. Maltsev, O. M. Nefedov

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Abstract

The mechanism of the pyrolysis of RHgCCl3 compounds (R = Cl, C5H5, CCl3) was studied by vacuum pyrolysis combined with mass spectrometry. To monitor the characteristic products, the ionic abundances and the appearance potentials were measured for significant ions at various temperatures of the pyrolyser. The temperature dependence (25–500°C) of the ionic abundances for all pyrolysis products has clarified the primary reaction pattern with the formation of both dichlorocarbene and trichloromethyl radicals. The main secondary reaction for :CCl2, dimerization in C2Cl4, plays an increasing role with increase in temperature. The origin of the reactive CCl3 and :CCl2 intermediates was proved by comparing measured appearance potentials with known ionization potentials.

Original languageEnglish
Pages (from-to)231-238
Number of pages8
JournalJournal of Analytical and Applied Pyrolysis
Volume2
Issue number3
DOIs
Publication statusPublished - Jan 1 1980

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ASJC Scopus subject areas

  • Analytical Chemistry
  • Fuel Technology

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