What is the term for the lowest temperature at which a liquid produces enough vapor to sustain a continuous fire?

The term for the lowest temperature at which a liquid produces enough vapor to sustain a continuous fire is referred to as the fire point. At this temperature, the vapor can not only ignite but will also continue to burn as long as there is an adequate supply of oxygen. The fire point is crucial in understanding fire behavior and fire safety, as it helps identify temperatures at which substances can pose a fire hazard.

In contrast, the flash point is the temperature at which a liquid can form an ignitable mixture in air, but it does not necessarily indicate that a continuous fire will continue. Ignition temperature refers to the minimum temperature needed for a substance to ignite spontaneously without an external ignition source. The boiling point is the temperature at which a liquid boils and changes to a gas, which is not directly related to its ability to sustain a fire. Each of these terms plays a different role in fire dynamics and safety considerations.