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Thermochemistry and lower combustion limit of ammonium perchlorate in presence of methylammonium perchlorates

Jain, SR and Adiga, KC and Verneker, Pai VR (1981) Thermochemistry and lower combustion limit of ammonium perchlorate in presence of methylammonium perchlorates. In: Combustion and Flame, 40 . pp. 113-120.

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Official URL: http://dx.doi.org/10.1016/0010-2180(81)90117-6

Abstract

The heats of combustion of mono-, di-, tri- and tetramethylammonium perchlorates have been determined by bomb calorimetry. The data have been used to explain why the thermal behavior of ammonium perchlorate (AP) is considerably modified in presence of these compounds as shown by differential thermal analysis. Above a particular concentration of methylammonium perchlorate (MAP), AP ignites in a single step around 290°C. The minimum concentration of a MAP (mono-, di-, tri- or tetra-) needed to cause ignition of AP in a single step depends on intramolecular “elemental stoichiometric coefficient” of the mixtures that has the same value regardless of the MAP. Furthermore, the calorimetric values of these mixtures are the same. The heat evolved on ignition of such a composition appears to determine the lower concentration limit of combustion of its mixture with AP.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Inc.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Manjula Kadadallimath
Date Deposited: 29 Oct 2009 08:40
Last Modified: 29 Feb 2012 07:38
URI: http://eprints.iisc.ac.in/id/eprint/22359

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