define ignition temperature
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In chemistry, the autoignition temperature or kindling point of a substance is the lowest temperature in which it spontaneously ignites in a normal atmosphere without an external source of ignition, such as a flame or spark. This temperature is required to supply the activation energy needed for combustion
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the lowest temperature at which a combustible substance when heated (as in a bath of molten metal) takes fire in air and continues to burn. — called also autogenous ignition temperature. — compare fire point.
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