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A DSC Study of the Sensitization of some Dimethyl Substituted Polynitroaromatic Compounds by Sodium Benzoate
Author(s) -
Walsh Moyra,
Wells Clifford H. J.
Publication year - 1999
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/(sici)1521-4087(199902)24:1<50::aid-prep50>3.0.co;2-a
Subject(s) - chemistry , medicinal chemistry , sodium , thermal decomposition , polymer chemistry , organic chemistry
The decomposition temperatures of mixtures of sodium benzoate and 1,3‐dimethyl‐2,4,6‐trinitrobenzene, 3,5′‐dimethyl‐2,2′,4,4′,6‐pentanitrobiphenyl, and 3,3′‐dimethyl‐2,2′,4,4′,6,6′‐hexanitrobiphenyl are lower than those for the corresponding nitrocompounds. The sensitizing effect of sodium benzoate is attributed to the formation of a benzyl‐type anion; this anion arising from hydrogen abstraction by the base from a methyl group in the nitrocompound. At high mole ratio of base: nitrocompound, the thermograms for mixtures containing a nitrocompound with the biphenyl moiety are explained in terms of the presence of a benzyl‐type dianion.