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hydrocarbon |
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hydrocarbonAny of a class of chemical compounds containing only hydrogen and carbon (for example, the alkanes and alkenes). Hydrocarbons are obtained industrially principally from petroleum and coal tar. Unsaturated hydrocarbons contain at least one double or triple carbon-carbon bond, whereas saturated hydrocarbons contain only single bonds.
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PCHE (known familiarly as "Peachy") stands for polycyclohexylethylene, a saturated cyclic hydrocarbon that is derived from styrene monomer. The 1990 CAA amendments particularly prevented growth of chlorinated and cyclic hydrocarbons, among other segments. |
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