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In organic chemistry, an alkane, or paraffin (a historical trivial name that also has other meanings), is an acyclic saturated hydrocarbon. In other words, an alkane consists of hydrogen and carbon atoms arranged in a tree structure in which all the carbon–carbon bonds are single. [1] Alkanes have the general chemical formula C n H 2n+2.
1.419 908 915 343 95 × 10 30: 1.088 656 356 286 10 × 10 35: C 78 H 158: n-octaheptacontane 79 3.872 282 575 137 01 × 10 30: 3.466 709 375 563 28 × 10 35: C 79 H 160: n-nonaheptacontane 80 1.056 447 690 694 67 × 10 31: 1.104 376 119 390 16 × 10 36: C 80 H 162: n-octacontane 81 2.883 360 943 627 73 × 10 31: 3.519 534 626 992 96 × 10 36: C ...
Heptane or n-heptane is the straight-chain alkane with the chemical formula H 3 C(CH 2) 5 CH 3 or C 7 H 16.When used as a test fuel component in anti-knock test engines, a 100% heptane fuel is the zero point of the octane rating scale (the 100 point is 100% iso-octane).
Tetracosane, also called tetrakosane, is an alkane hydrocarbon with the structural formula H(CH 2) 24 H. As with other alkanes, its name is derived from Greek for the number of carbon atoms, 24, in the molecule. It has 14,490,245 constitutional isomers, [2] and 252,260,276 stereoisomers. [3]
Higher alkanes are naturally present in crude oil and can be obtained via fractional distillation.Saturated fatty acids decarboxylate to higher alkanes. Long olefins can be hydrogenated to yield higher alkanes. n-alkanes can be isolated via the formation of urea clathrates.They can also be synthesized through Kolbe electrolysis or other coupling reactions like the Wurtz reaction.
Nonadecane is an alkane hydrocarbon with the chemical formula CH 3 (CH 2) 17 CH 3, ... at 10:42 (UTC). Text is ...
The naming of polycyclic alkanes such as bicyclic alkanes and spiro alkanes is more complex, with the base name indicating the number of carbons in the ring system, a prefix indicating the number of rings ( "bicyclo-" or "spiro-"), and a numeric prefix before that indicating the number of carbons in each part of each ring, exclusive of ...
In chemistry, an open-chain compound (or open chain compound) or acyclic compound (Greek prefix α 'without' and κύκλος 'cycle') is a compound with a linear structure, rather than a cyclic one. [1] An open-chain compound having no side groups is called a straight-chain compound (also spelled as straight chain compound).