Ethyl alcohol flammability limits

Some organic compounds can be in solution with water and the mixture may still be a flammable mixture. The vapors above these mixtures such as ethanol, methanol, or acetone can form flammable mixtures with air. Bodurtha [39] and Albaugh and Pratt [47] discuss the use of Raoult s law (activity coefficients) in evaluating the effects. Figures 7-52A and B illustrate the vapor-liquid data for ethyl alcohol and the flash point of various concentrations, the shaded area of flammability limits, and the UEL. Note that some of the plots are calculated and bear experimental data verification. 

ETHER, VINYL ETHYL (109-92-2) C4HgO Highly flammable, polymerizable liquid. Forms explosive mixture with air [explosion limits in air (vol %) 1.7 to 28 flash point <-50°F/<-46°C autoignition tenqj 395°F/202°C Fire Rating 4]. Forms unstable peroxides on contact with air. Reacts violently with oxidizers, ammonium persulfate, bromine dioxide, methane sulfonic acid (may cause polymerization), nitric acid, perchlorates, permanganates, peroxides and hydroperoxides, sulfuric acid. Incompatible with acids, ammonia, aliphatic amines, alkanolamines. On small fires, use dry chemical powder (such as Purple-K-Powder), alcohol-resistant foam, or COj extinguishers. 

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