What is the flash point of gasoline?

[June]

The flash point of gasoline is ±46°C, while diesel has a flash point of 55°C under normal pressure. The flash point refers to the lowest temperature at which a combustible material can produce a flash (instantaneous combustion) phenomenon. At the flash point temperature, only the mixture of vapor from the liquid and air can ignite, not the liquid itself. This is because, at the flash point, the evaporation rate of the liquid is relatively slow. For homologous combustible liquids, the variation in flash points follows certain patterns: 1. The flash point increases with molecular weight; 2. The flash point increases with specific gravity; 3. The flash point increases with boiling point; 4. The flash point increases with decreasing vapor pressure.