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Gamma‐initiated iodination of methane in the gas phase
Author(s) -
Vilenchich R.,
Hodgins J. W.
Publication year - 1970
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450480518
Subject(s) - iodine , iodide , methane , halogenation , chemistry , scavenger , gas phase , hydrogen , radiochemistry , photochemistry , inorganic chemistry , radical , organic chemistry
Gamma radiation has been used to initiate the gas phase reaction between iodine and methane. Under appropriate conditions, the products are hydrogen iodide and the iodomethanes. The experiments were conducted over a range of temperature, concentration, and at two levels of total absorbed dose. The existence of a chain reaction is presumed, on the basis of G‐values, which were as high as 7 × 10 7 . In view of the propensity of iodine as a radical scavenger, this high efficiency might seem surprising, but may be attributable to the known autocatalyic effect of iodine in substitution reactions.