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Definitions (12)
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aliphatic
hydrocarbons characterized by a straight- or branched-chain; can include single or multiple bonds. Aliphatics are not cyclic; they do not have a ring structure. The simplest member of this group is methane.
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aromatic
an organic compound characterized by multiple double bonds and a ring structure, like the benzene ring. Aromatics are very stable because the double bonds are conjugated, meaning that the carbon-to-carbon bonds go in a pattern of single bond, then double bond, then single, then double, etc.
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benzene
a colorless, volatile, flammable liquid used extensively in organic chemistry as a base structure to which different atoms and molecular structures can be attached. It is used to make medicine, crop protection chemicals and many other beneficial products. It is also used as a solvent and component in motor fuels.
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ethylene
a colorless, flammable, gas that contains only two carbons that are doubly-bonded to one another. It is one of the most important olefins and used extensively in chemical synthesis and to make many different kinds of plastics, such as the plastic used for water bottles.
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hydrocarbon
broad descriptor pertaining to organic chemicals and are characterized by various carbon and hydrogen molecular structures. Common term used to describe petrochemicals.
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inorganic
not containing the carbons and hydrogens bound together like those found in organic compounds. Class of chemicals that typically exist as salts, acids and alkalines, as well as certain gases and elemental compounds. Carbon dioxide, although it contains a carbon atom, is considered inorganic because of its lack of hydrogens bound to the carbon atom.
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naphthenic
any of various volatile, often flammable, liquid hydrocarbon mixtures characterized by saturated ring structures that are used chiefly as solvents and diluents.
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olefin
hydrocarbons characterized by having at least one double bond; specifically, any of a series of open-chain hydrocarbons such as ethylene.
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organic
chemical compounds containing carbon atoms bonded to other carbon atoms, hydrogen atoms or other substitutes for hydrogen (e.g., halogens, sulfur, nitrogen, etc.)
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synthesis gas
a mixture of carbon monoxide and hydrogen used especially in chemical synthesis to make hydrocarbons.
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