autoignition temperature


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Related to autoignition temperature: flash point

autoignition temperature

[¦ȯd·ō·ig¦nish·ən ′tem·prə·chər]
(chemistry)
The temperature at which a material (solid, liquid, or gas) will self-ignite and sustain combustion in air without an external spark or flame.
References in periodicals archive ?
If you spill avgas on a surface at the autoignition temperature, prepare to run.
Hydrogen has an autoignition temperature of 858K requiring an ignition source to combust in an IC engine (Lambe, Watson 1993).
Topics include a standard practice for conducting ruggedness tests, the minimum autoignition temperature of dust clouds, separating liquid residue from fire debris samples, preparing items involved in litigation, and handling unbound engineered nanoscale particles in occupational settings.
Autoignition temperature (430[degrees]C) is lower than the melting temperature (650[degrees]C), so any spark can cause the ignition of chips or dust.
This reduction in the autoignition temperature and the greater temperature increase during the compression stroke for CR = 16:1 act together to reduce the required [T.sub.in] by ~30[degrees]C, as shown by the [T.sub.in] ranges given in the legend of Fig.
The minimum temperature at which a dust will autoignite when exposed to air heated in a furnace is the minimum autoignition temperature. Experimentally, a furnace is heated to a temperature and a dust is blown into the furnace to determine whether it will ignite.