alkane

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alkane

(ăl`kān), any of a group of aliphatic hydrocarbons whose molecules contain only single bonds (see chemical bondchemical bond,
mechanism whereby atoms combine to form molecules. There is a chemical bond between two atoms or groups of atoms when the forces acting between them are strong enough to lead to the formation of an aggregate with sufficient stability to be regarded as an
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). Alkanes have the general chemical formula CnH2n+2. An alkane is said to have a continuous chain if each carbon atom in its molecule is joined to at most two other carbon atoms; it is said to have a branched chain if any of its carbon atoms is joined to more than two other carbon atoms. The first four continuous-chain alkanes are methanemethane
, CH4, colorless, odorless, gaseous saturated hydrocarbon; the simplest alkane. It is less dense than air, melts at −184°C;, and boils at −161.4°C;. It is combustible and can form explosive mixtures with air.
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, CH4; ethaneethane
, CH3CH3, gaseous hydrocarbon. It is a continuous-chain alkane. As a constituent of natural gas, it is used for fuel. It can be prepared by cracking and fractional distillation of petroleum.
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, C2H6; propanepropane,
CH3CH2CH3, colorless, gaseous alkane. It is readily liquefied by compression and cooling. It melts at −189.9°C; and boils at −42.2°C;.
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, C3H8; and butanebutane
, C4H10, gaseous alkane, a hydrocarbon that is obtained from natural gas or by refining petroleum. It can be liquefied at room temperature by compression. There are two structural isomers of butane.
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, C4H10. Names of continuous-chain alkanes whose molecules contain more than five carbon atoms are formed from a root that indicates the number of carbon atoms and the suffix -ane to indicate that the compound is an alkane; e.g., alkanes with 5, 6, 7, 8, 9, and 10 carbon atoms in their molecules are pentane, hexane, heptane, octane, nonane, and decane, respectively. The name of a branched-chain alkane is formed by adding prefixes to the name of the continuous-chain alkane from which it is considered to be derived; e.g., 2-methylpropane (called also isobutane) is thought of as being derived by replacing one of the hydrogen atoms bonded to the second (2-) carbon atom of a propane molecule with a methyl (CH3) group, forming CH3CH(CH3)2. Chemically, the alkanes are relatively unreactive. They are obtained by fractional distillation from petroleum and are used extensively as fuels. The alkanes are sometimes referred to as the methane series (after the simplest alkane) or as paraffins.

alkane

[′al‚kān]
(organic chemistry)
A member of a series of saturated aliphatic hydrocarbons having the empirical formula C n H2 n + 2. Also known as paraffin; paraffinic hydrocarbon.

alkane

a. any saturated aliphatic hydrocarbon with the general formula CnH2n+2
b. (as modifier): alkane series
References in periodicals archive ?
Those who safely sit in their palaces [a reference to President Recep Tayyip Erdoy-an's presidential palace, dubbed the Ak Saray] with the protection of dozens of bodyguards and who ride in armored cars should not talk about killed soldiers and should not praise them," Alkan further said at the funeral.
Mehmet Alkan criticized the government's unexpected and abrupt policy change on the Kurdish settlement process, which he argued has led to the PKK killing many military officers, including his brother, for the sake of the AK Party's political ambitions, such as a new election in the coming months and aiming to secure more votes for its single-party rule.
Alkan was born in 1950 in Ankara and graduated from Ankara University's Law Department in 1973.
Alkan handed over, following an election early on Tuesday, the presidency of the top judicial body to Cirit who was head of the 13th.
Staying in the Maiden City, EROL ALKAN shoots up the road to join PHIL KIERAN and resident DJs at the Deep Fried Funk in the Nerve Centre in another top line up.
EROL Alkan and Richard Norris haven't just put together a collection of remixes here, these are re-animations and re-interpretations of some outstanding tracks.
It is impossible for a judge to feel safe if his position is changed two or three times a year," Alkan said, stressing that it is also impossible for an individual to consider the judiciary's objectivity a guarantee when it is thought to be under political influence.
Beyond The Wizard's Sleeve - Re-Animations Vol 1 (New State) EROL Alkan and Richard Norris haven't just put together a collection of remixes here, these are re-animations and re-interpretations of some outstanding tracks.
The legendary Derrick May (pictured) and Fancois K head up the show alongside such stars as Andy C and Erol Alkan.
A festival insider said: "Erol Alkan and Booka Shade are two of the hottest names on the dance circuit at the minute and they have also added their names to the line-up.
Along with Prime Minister Ahmet Davutoy-lu, Minister of Justice Bekir Bozday- and Parliament Speaker Cemil Ecicek, Constitutional Court President HaE-im Kylyc, President of Court of Cassation Ali Alkan, Head of the Council of State Zerrin GE-ngE[micro]r, Court of Accounts Head Recai Akyel and other high court representatives were ready at the lunch with President.
Erol Alkan and Goldie Lookin Chain get ready to Freak On Sunday 16th April, Freak celebrates three years of rocking the Wrexham and North Wales area for a suitably epic bank holiday birthday party.