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Condensed phase reactions in solid propellants

Kishore, K and Pal, Verneker VR and Nair, MNR (1975) Condensed phase reactions in solid propellants. In: AIAA Journal, 13 (9). pp. 1240-1242.

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The paper investigates the cause for the difference between differential scanning calorimetric results and mass spectrometric studies on polystyrene (PS) ammonium perchlorate (AP) propellants as related to the method of preparation of the propellant and the difference in experimental conditions by the use of mass spectrometry. Sufficient time is given for the product sublimates to interact with each other and attain equilibrium. It is shown that the propellant decomposition is a nonadditive phenomenon and that even a physical mixture of AP and PS does not yield additive decomposition products of its components. Results on the identification of a yellow compound containing chlorine in the bulk of the propellant suggest a condensed phase reaction. The occurrence of the reaction in the porous condensed phase of the propellant may explain the larger exothermicity of the propellant compared to the additive heats of decomposition of its components.

Item Type: Journal Article
Publication: AIAA Journal
Publisher: American Institute of Aeronautics and Astronautics
Additional Information: Copyright of this article belongs to American Institute of Aeronautics and Astronautics.
Keywords: Calorimeters;condensates;mass spectroscopy;propellant decomposition;solid propellants;surface temperature;ammonium perchlorates;gas mixtures;mathematical models;propellant combustion.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 27 Jan 2010 05:29
Last Modified: 27 Jan 2010 05:29
URI: http://eprints.iisc.ac.in/id/eprint/23786

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