✍ Scribed by J. E. Collin; A. Delplace
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The thermal behavior of acetaldehyde, at pressures of the order of 100 microns, has been investigated, up to 750"C, in a quartz reactor connected to a TOF Bendix mass spectrometer. In those conditions, no methane formation has been observed. Two important processes are the formation of acetylene and water, possibly by unimolecular decomposition of acetaldehyde, and the formation of ethylene and water, probably by decomposition of ethanol, a secundary product. The primary step of acetaldehyde decomposition is discussed, as well as the overall order of the reaction. At the low pressures used in this work, data are consistent with a first order reaction, rather than 3/2 or 2, and an activation energy of 57 kcal/m is proposed.
📜 SIMILAR VOLUMES
## Abstract The mass spectra of β, γ‐acetylenic‐α, β‐allylic alcohols are discussed. The main fragmentation is directed by the allylic position of the alcohol function. Deuterium labeling and the presence of a methyl substituent in different positions suggest that some degradations occur through a
## Abstract The hydrogen bonded complexes formed between tetrabutylammonium bromide and phenol derivatives are studied by infrared spectrometry in CCl~4~. The logarithm of the stability constants of complexes of 1:1 and 2:1 stoechiometry, and the frequency shifts of the stretching vibration IV~OH~