A new method for the prediction of electric spark sensitivity of polynitro arenes through maximum obtainable detonation pressure has been proposed. This work uses two additional factors, which depend on the contribution of some structural parameters. Twelve polynitro arenes as training set were applied to optimize new correlation and twenty two polynitro arenes as test set were also used to check the validity of the method. The calculated electric spark sensitivities have a root mean square (rms) deviation of 2.27 J and a maximum deviation of 4.48 J from experimental data for training set. The rms and maximum deviations of predicted electric spark sensitivities from experimental values for test set are 2.28 and 4.77 J, respectively.
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