Properties of Kerosene

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Properties of Kerosene
Kerosene fuel is used for heating and cooking in many areas. (Jupiterimages/ Images)

Kerosene is a hydrocarbon fuel distilled from petroleum. The term kerosene was trademarked in 1854, but has since become a generic term much like the word "zipper." Also known as paraffin in some parts of the world, the fuel is used for heating, cooking and as a component of jet engine fuel. Kerosene's chemical and physical properties make it different from other fuels.

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Appearance & Smell

Kerosene is a odourless liquid at room temperature with a clear to pale yellow colour. However, when kerosene burns it gives off a strong smoke odour.


At room temperature, kerosene has a density of 0.80 grams per millilitre. the density increases as temperature decreases. At 15 degrees Celsius, the density can increase to 0.94 grams per millilitre.


Although kerosene is insoluble in water, it does mix with other petroleum solvents.

Boiling Point

Kerosene boils at very high temperatures ranging from 175 degrees C to 325 degrees Celsius. The range is dependent on air pressure.

Flash Point

Flash point is the minimum temperature at which vapours of a liquid will ignite. A substance with a low flash point is easier to ignite than one with a higher flash point. Kerosene's flash point ranges from 100 degrees to 85 degrees Celsius, depending on the pressure the kerosene is under. At sea level kerosene's flash point is 65 degrees Celsius.

Autoignition Temperature

The temperature at which a substance will ignite on its own at normal air pressure is the autoignition temperature. This temperature for kerosene is 229 degrees Celsius.

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