Abstract
THE study of flames supported by the vapour of 72 per cent perchloric acid1,2 has been continued by an investigation into methane-rich premixed flames of perchloric acid. Perchloric acid flames have already been shown to have no effective lower flammability limit since a decomposition flame of the acid vapour alone can be stabilized2. It has now been found that mixtures containing up to at least 84 per cent methane in perchloric acid are flammable; this corresponds to 20 times as much methane as in a stoichiometric mixture, whereas methane-oxygen mixtures are only flammable up to 61 per cent methane3, corresponding to 3.1 times as much methane as in a stoichiometric mixture.
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References
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PEARSON, G. Methane-rich Perchloric Acid Flames. Nature 208, 283–284 (1965). https://doi.org/10.1038/208283b0
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DOI: https://doi.org/10.1038/208283b0
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