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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 alkanesalkane
, any of a group of aliphatic hydrocarbons whose molecules contain only single bonds (see chemical bond). Alkanes have the general chemical formula CnH2n+2.
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, i.e., saturated hydrocarbonshydrocarbon
, any organic compound composed solely of the elements hydrogen and carbon. The hydrocarbons differ both in the total number of carbon and hydrogen atoms in their molecules and in the proportion of hydrogen to carbon.
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 with the general formula CnH2n+2, where n is an integer between 22 and 27.



a petroleum product that consists of a mixture of predominantly straight-chain alkanes that range from nine to 40 carbon atoms in length. Isoparaffin, cycloparaffin, and naphtheno-aromatic hydrocarbons are also found in paraffin. Solid paraffin, which melts between 45° and 70°C, is primarily obtained from oily distillates of paraffin-base petroleum. In this process, the crude mixture of paraffin and oil is dewaxed by crystallization. Paraffin is also extracted from petroleum fractions through the selective adsorption of straight-chain alkanes by zeolites. Liquid paraffin, which boils off between 180° and 360°C, is obtained during the urea dewaxing of certain petroleum products. Commercial paraffin undergoes preliminary adsorbent processing and is then purified by other methods.

Because of its chemical neutrality and various other properties, paraffin is widely used in the food industry, in medicine, in the manufacture of cosmetics and perfumes, and as an insulating material in electrical engineering. It also serves as a raw material for the petrochemical industry in the manufacture of such substances as higher fatty acids, higher alcohols, and detergents. Several brands of paraffin are currently available, including fully refined paraffin, semirefined paraffin, and medicinal paraffin.


Pereverzev, A. N., N. F. Bogdanov, and lu. N. Roshchin.
Proizvodstvo parafinov. Moscow, 1973.





(less commonly), paraffine
1. a liquid mixture consisting mainly of alkane hydrocarbons with boiling points in the range 150°--300°C, used as an aircraft fuel, in domestic heaters, and as a solvent
2. another name for alkane
3. See paraffin wax
References in periodicals archive ?
Global paraffin wax market is segmented on the basis of application and geography.
The oil in the well begins to cross its cloud point threshold, and paraffin crystals start to precipitate as the oil moves from the pore space to the wellbore opening.
In low- and middle-income countries, including South Africa (SA), ingestion of paraffin remains a common cause of childhood poisoning.
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Halbouty said that the acquired property enhances its product offering in the area of paraffin and asphaltene treatment chemistries as well as emulsion breakers and solids dispersants.
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Mary, who has written a book, Paraffin Young & Friends, says she is in awe of his achievements as the first person to make oil extraction commercially viable.
The patients were randomized into two groups: the joint mobilization techniques with paraffin wax bath were included in group A, and joint mobilization techniques without paraffin wax bath in group B.
5ml of Czapek broth in sterile Mac Cartney bottle containing paraffin wax coated slide and then 0.
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