Talk:autoignition temperature
"Ignition temperature" seems to be an informal variant of "autoignition temperature", see the Wikipedia article and especially this reply at Chemistry.Stackexchange:
- The autoignition temperature is the lowest temperature at which a substance can spontaneously ignite in a normal atmosphere without an external source (spark,flame etc).
- "Ignition temperature" is what people call autoignition temperature who don't care about details. As Ivan said, there is no such thing as ignition temperature.