... C). Melting point -97.8 °C. Boiling point 64.5 °C. Flash point of 12.22 °C. Self-ignition ... 21.2 °C). Steam and air mixture explosion 6 ~ 36.5% lower limit. With water, ethanol, ether, benzene, ketones, ... C). Melting point -97.8 °C. Boiling point 64.5 °C. Flash point of 12.22 °C. Self-ignition ... 21.2 °C). Steam and air mixture explosion 6 ~ 36.5% lower limit. With water, ethanol, ether, benzene, ketones, ...