Other
Scientific paper
Feb 1958
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1958rspsa.243..449n&link_type=abstract
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Volume 243, Issue 1235, pp. 449-457
Other
Scientific paper
The reaction of hexane with hydrogen atoms produced by mercury photosensitization, has been studied in a flow system at 300 degrees C. About one-third of the products had molecular weights greater than that of hexane, and dodecane was the main component of this product fraction. Hydrogen: hexane ratios up to 55:1 were employed and in these conditions virtually all the quenching of excited mercury atoms was brought about by hydrogen. The activation energy and steric factor of the reaction C6H14 + H = C6H13 + H2 are estimated at 6 kcal and 10-4, respectively. These values are in accord with those recently obtained for the corresponding reactions involving other n-paraffins. The initial product distribution was similar to that obtained in the mercury photosensitized decomposition of hexane and the findings suggest that products of lower molecular weight than hexane derive almost completely from thermal decomposition of hexyl radicals. 'Atomic cracking' appears to be of little importance at these high temperatures.
Norrish G. W. R.
Purnell J. H.
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