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High temperature kinetics of the thermal decomposition of the lower alkanoic acids
Author(s) -
Doolan K. R.,
Mackie J. C.,
Reid C. R.
Publication year - 1986
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550180508
Subject(s) - chemistry , thermal decomposition , kinetics , shock tube , decomposition , decarboxylation , atmospheric temperature range , pyrolysis , propanoic acid , dehydration , organic chemistry , photochemistry , thermodynamics , catalysis , shock wave , physics , quantum mechanics , biochemistry
The thermal decomposition of propanoic acid dilute in argon has beenstudied in a single‐pulse shock tube over the temperature range of 1100‐1500 K and over the pressure range of 14‐18 atm. The decomposition kinetics have been satisfactorily computer modelled by means of afree radical mechanism involving H and OH chains. Recent single‐pulse shock tube product analyses of acetic acid decomposition have been computer modelled using a free radical mechanism for decarboxylation coupled to a unimolecular dehydration reaction. A comparison between the thermal decomposition kinetics of the C 1 C 3 alkanoic acids is made. The present studies do notprovide evidence for the participation of transition states involving a pentavalent carbon atom in the pyrolyses of the lower alkanoic acids.