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  2. Fuel dye - Wikipedia

    en.wikipedia.org/wiki/Fuel_dye

    Fuel pumps in Ireland, with green gas oil and red kerosene, and notices that it is an offence to use marked fuels in a motor vehicle.. After August 2002, all European Union countries became obliged to add about 6 mg/L (0.034 oz/bbl) of Solvent Yellow 124, a dye with structure similar to Solvent Yellow 56, to heating fuel.

  3. Color of chemicals - Wikipedia

    en.wikipedia.org/wiki/Color_of_chemicals

    The color of chemicals is a physical property of chemicals that in most cases comes from the excitation of electrons due to an absorption of energy performed by the chemical. What is seen by the eye is not the color absorbed, but the complementary color from the removal of the absorbed wavelengths. This spectral perspective was first noted in ...

  4. Avgas - Wikipedia

    en.wikipedia.org/wiki/Avgas

    Avgas. An American Aviation AA-1 Yankee being refueled with 100LL avgas. Avgas ( aviation gasoline, also known as aviation spirit in the UK) is an aviation fuel used in aircraft with spark-ignited internal combustion engines. Avgas is distinguished from conventional gasoline (petrol) used in motor vehicles, which is termed mogas (motor gasoline ...

  5. Kerosene - Wikipedia

    en.wikipedia.org/wiki/Kerosene

    A kerosene bottle, containing blue-dyed kerosene. Kerosene, or paraffin, is a combustible hydrocarbon liquid which is derived from petroleum. It is widely used as a fuel in aviation as well as households. Its name derives from Greek: κηρός ( kērós) meaning "wax", and was registered as a trademark by Nova Scotia geologist and inventor ...

  6. Gas - Wikipedia

    en.wikipedia.org/wiki/Gas

    Gas. Drifting smoke particles indicate the movement of the surrounding gas. Gas is one of the four fundamental states of matter. The others are solid, liquid, and plasma. [1] A pure gas may be made up of individual atoms (e.g. a noble gas like neon ), elemental molecules made from one type of atom (e.g. oxygen ), or compound molecules made from ...

  7. Liquefied petroleum gas - Wikipedia

    en.wikipedia.org/wiki/Liquefied_petroleum_gas

    Liquefied petroleum gas, also referred to as liquid petroleum gas (LPG or LP gas), is a fuel gas which contains a flammable mixture of hydrocarbon gases, specifically propane, n-butane and isobutane. It can sometimes contain some propylene, butylene, and isobutene. LPG is used as a fuel gas in heating appliances, cooking equipment, and vehicles.

  8. Category:Gases with color - Wikipedia

    en.wikipedia.org/wiki/Category:Gases_with_color

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  9. 2021 United Kingdom fuel supply crisis - Wikipedia

    en.wikipedia.org/wiki/2021_United_Kingdom_fuel...

    The 2021 United Kingdom fuel supply crisis was a period of a few weeks in which petrol stations in some parts of the UK ran out of fuel . In September 2021, almost 21 years since the last fuel crisis, which took place in September 2000, panic buying of fuel was reported to be caused by media reports of a leaked government briefing discussing ...