| | benzene - HighBeam Encyclopedia (Site not responding. Last check: 2007-10-21) |
 | | The simplest picture of the benzene molecule, proposed by the German chemist Friedrich Kekulé (1865), is a hexagon of six carbon atoms joined by alternating single and double bonds and each bearing one hydrogen atom, symbolized by [symbol]. |
 | | Benzene is the parent substance of the aromatic compounds, a large and important group of organic compounds. |
 | | Benzene and the other aromatic hydrocarbons are obtained for industrial purposes from the distillation of coal tar, a byproduct in the manufacture of coke, and from petroleum by special reforming methods. |
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