A.A. Kostin, Cand. Sci. (Chem.), Senior Research Assistant Yu.M. Litvinov, Cand. Sci. (Chem.), Assistant of the Department Head, email@example.com FGUP «GosNIIOKHT», Moscow, Russia M.V. Korolkov, Cand. Sci. (Eng.), Deputy Department Head Ministry of Industry and Trade, Moscow, Russia
When designing the technological process for the synthesis of the end products it is important to know the fire and explosion hazardous characteristics of the raw materials, intermediate products and production wastes in order to initially create the foundation of industrial safety strategic basis. One of the main tasks is the selection of the raw materials with fire and explosion hazard indicators that do not allow the possibility of ignition. For the purpose of reducing fire risk, the temperature of chemical substances flashing and its dependence on the boiling point on the example of aliphatic alcohols and ketones have been studied, and the examination of different approaches to its determination were emphasized. General equation is proposed for calculating the flash point of normal alcohols and isomers, which can form the basis for the prediction of fire and explosion hazardous parameter. Good correlation was noticed within the frame of mutual dependence of the flash and boiling temperatures, which allows to determine the alkanols and ketones flash point by calculation. When searching for the relationship the parameters of high purity compounds are used, since even a small amount of dissolved combustible gases can cause the significant change in the flash point in the closed vessel. High reliability of the flash point forecast is shown with inclusion of the corrected boiling point values at the normal atmospheric pressure of 760 mm Hg. This is confirmed by the high degree of coincidence of the calculated data with the results of experiments presented in domestic and foreign literature sources, i.e. the proposed methods allow to predict with sufficient accuracy the flash point of the compounds, for which its value is unknown.
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