Simple method for reliable predicting flash points of unsaturated hydrocarbons
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Updated: May 30, 2026

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Published on: October 21, 2016
Mohammad Hossein Keshavarz1, Majid Ghanbarzadeh
1Department of Chemistry, Malek-ashtar University of Technology, Shahin-shahr PO Box 83145/115, Islamic Republic of Iran. mhkeshavarz@mut.ac.ir
Abstract:
This work introduces a simple method for prediction of the flash point of different classes of unsaturated hydrocarbons including alkenes, alkynes and aromatics. Elemental composition is used as a core function that can be revised for some compounds by a correcting function. The predicted flash points for a data set of 173 unsaturated hydrocarbons are in good agreement with the measured values such that the root mean square (rms) error is 9 K. The estimated flash points for 76 furthers compounds have been compared with two new group additivity methods, where these methods can be applied, that the new method gives a lower rms value. It is shown that the new model can easily be used for any unsaturated hydrocarbons with complex molecular structures.
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