paraffin
The Columbia Encyclopedia, Sixth Edition | Date: 2008
paraffin white, more-or-less translucent, odorless, tasteless, waxy solid. It melts between 47°C and 65°C and is insoluble in water but soluble in ether, benzene, and certain esters. Paraffin is unaffected by most common chemical reagents but burns readily in air. Obtained from petroleum during refining, it is used in candles, for coating paper, and for various other purposes. Chemically, paraffin is a mixture of high-molecular-weight alkanes , i.e., saturated hydrocarbons with the general formula C n H 2n+2 , where n is an integer between 22 and 27.
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The Columbia Encyclopedia, Sixth Edition 2008
The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press
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Related entries from encyclopedias, dictionaries, and thesauruses
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liquid paraffin
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liquid paraffin See medicinal paraffin .
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Paraffin wax , a mixture of organic compounds traditionally derived from petroleum ... synthetically. It usually consists of alkane hydrocarbons (also called paraffins) and is used for coating and sealing, for candles, and in floor waxes, lubricants, waterproofing agents, and cosmetics. alkane . paraffin ...
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paraffin, medicinal (liquid) See medicinal paraffin .
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medicinal paraffin Liquid paraffin, a mineral oil of no nutritional value since it passes through the intestine unchanged. Used as a mild laxative because of its lubricant properties.
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paraffin series
The Columbia Encyclopedia, Sixth Edition
see alkane .
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