autoignition temperature

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autoignition temperature

The minimum temperature needed for self-sustained combustion in absence of a spark or flame, at which the vapours from a volatile liquid will ignite spontaneously.

The autoignition temperature (AT) is of interest to the Occupational Safety and Health Administration (OSHA) (US), which lists ATs in its Materials Safety Data Sheets, see there.
References in periodicals archive ?
1] can be affected by a low cetane number of ethanol, its high latent heat for evaporation (910 kJ/kg) and auto-ignition temperature (420[degrees]C).
In contrast to ethanol, petrol demonstrates advantages linked with its threefold higher cetane number, lower auto-ignition temperature (300[degrees]C) and a calorific value better by 62.
This is the reaction between a strong alkali and animal or vegetable fats, which with heat, produces a soapy foaming action that reduces the temperature of the fuel below its auto-ignition temperature.
Specifying a minimum grease auto-ignition temperature for cooking oil of 685[degrees]F (363[degrees]C).
But since auto-ignition temperatures are relatively low, it's difficult keeping a hot, compressed mixture from lighting off prematurely.