Chemistry: flash point, fire point, and ignition point
Self-tutoring about chemistry: the tutor mentions the terms flash point, fire point, and ignition point.
The following is according to my understanding.
I mention, in my post from June 22, 2018, the comparison between flash point and fire point. Fire point can be 5°C to 30°C above flash point in common cases.
Ignition point, also called auto-ignition point, is the temperature at which a substance will start to burn without any source of ignition.
Typically, the ignition point is much higher than the flash point. However, ignition point seems not to be predictable from flash point. For instance, diesel has a much higher flash point, at between 50°C and 100°C, than gasoline’s, which is around -43°C. Yet, diesel’s ignition point, around 210°C, is lower than gasoline’s, at 280°C.
Source:
Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.