Flash Point For Binary Mixtures

Abstract

Three flammable binary systems were studied for flash point as a function of liquid mixture composition: 1) decane/dodecane, 2) 0-xylene/cyclohexanol, and 3) 2-propanol/water. The vapor composition was estimated at each liquid mixture for which a flash point was obtained and these results were compared to the mixing rule proposed by Le Chatelier. This comparison shows that excellent agreement is obtained where the vapor composition can be accurately predicted, such as the nearly ideal case of system 1, but that for systems 2 and 3, where the composition calculations were made from the UNIFAC model and the Wilson model respectively, the agreement was not as good.