The Condition for Aqueous–organic Mixtures not to Flash

The condition for a liquid mixture not to flash is important in some cases, such as some process operation of aqueous–organic mixtures, applicability assessment of elimination of fire and explosion hazard by water in emergency response of the leakage of flammable liquids. Based on the flash point theory of binary aqueous–organic mixtures and the inerting effect on the flammability limits, a model to estimate the maximum quantity of flammable not to flash for an aqueous–organic mixture and its maximum flash point value was proposed. Validation of this model is conclusive with the experimental data for 5 miscible aqueous−organic mixtures. Overall, the model describes the experimental data of maximum flash point value and maximum quantity of flammable not to flash well.