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Kerosene, also known as lamp oil, is a combustible hydrocarbon liquid widely used as a fuel in industry and households. Its name derives from (ギリシア語:κηρός) (''keros'') meaning wax, and was registered as a trademark by Abraham Gesner in 1854 before evolving into a genericized trademark. It is sometimes spelled kerosine in scientific and industrial usage. The term "kerosene" is common in much of India, Canada, the United States, Argentina, Australia and New Zealand. Kerosene is usually called paraffin in the UK, Southeast Asia, East Africa and South Africa.〔(What is Kerosene – Ingoe Oils Ltd ). Ingoeoils.co.uk. Retrieved on 2015-06-02.〕 A more viscous paraffin oil is used as a laxative. A waxy solid extracted from petroleum is called paraffin wax. Kerosene is widely used to power jet engines of aircraft (jet fuel) and some rocket engines, and is also commonly used as a cooking and lighting fuel and for fire toys such as poi. In parts of Asia, where the price of kerosene is subsidized, it fuels outboard motors on small fishing boats.〔(【引用サイトリンク】 url = http://www.marineenginedigest.com/specialreports/kerosene-outboards.htm )〕 Kerosene lamps are widely used for lighting in rural areas of Asia and Africa where electrical distribution is not available or too costly for widespread use. World total kerosene consumption for all purposes is equivalent to about 1.2 million barrels per day.〔(International Energy Statistics ). US Department of Energy〕 To prevent confusion between kerosene and the much more flammable and volatile gasoline, some jurisdictions regulate markings or colorings for containers used to store or dispense kerosene. For example, in the United States, the Commonwealth of Pennsylvania requires that portable containers used at retail service stations be colored blue, as opposed to red (for gasoline) or yellow (for diesel fuel).〔(【引用サイトリンク】 url = http://www.portal.state.pa.us/portal/server.pt?open=514&objID=552949&mode=2 )〕 == Properties == Kerosene is a thin, clear liquid formed from hydrocarbons obtained from the fractional distillation of petroleum between 150 °C and 275 °C, resulting in a mixture with a density of 0.78–0.81 g/cm3 composed of carbon chains that typically contain between 6 and 16 carbon atoms per molecule. It is miscible in petroleum solvents but immiscible in water. Regardless of crude oil source or processing history, kerosene's major components are branched and straight chain alkanes and naphthenes (cycloalkanes), which normally account for at least 70% by volume. Aromatic hydrocarbons in this boiling range, such as alkylbenzenes (single ring) and alkylnaphthalenes (double ring), do not normally exceed 25% by volume of kerosene streams. Olefins are usually not present at more than 5% by volume. The flash point of kerosene is between 37 and 65 °C (100 and 150 °F), and its autoignition temperature is .〔(【引用サイトリンク】 url = http://www.inchem.org/documents/icsc/icsc/eics0663.htm )〕 The pour point of kerosene depends on grade, with commercial aviation fuel standardized at . Heat of combustion of kerosene is similar to that of diesel; its lower heating value is 43.1 MJ/kg (around 18,500 Btu/lb), and its higher heating value is 46.2 MJ/kg. In the United Kingdom, two grades of heating oil are defined. BS 2869 Class C1 is the lightest grade used for lanterns, camping stoves, wick heaters, and mixed with gasoline in some vintage combustion engines as a substitute for tractor vaporising oil. BS 2869 Class C2 is a heavier distillate, which is used as domestic heating oil. Premium kerosene is usually sold in 5 or 20 liter containers from hardware, camping and garden stores and is often dyed purple. Standard kerosene is usually dispensed in bulk by a tanker and is undyed. National and international standards define the properties of several grades of kerosene used for jet fuel. Flash point and freezing point properties are of particular interest for operation and safety; the standards also define additives for control of static electricity and other purposes. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Kerosene」の詳細全文を読む スポンサード リンク
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