... .33KPa (100mmHg 21.2 °C). Steam and air mixture explosion 6 ~ 36.5% lower limit. With water, ethanol, ether, benzene, ketones, halogenated ... .33KPa (100mmHg 21.2 °C). Steam and air mixture explosion 6 ~ 36.5% lower limit. With water, ethanol, ether, benzene, ketones, halogenated ...