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[mass noun] A volatile hydrocarbon mixture obtained from petroleum, used as a solvent.
- ‘When nothing is known about the mixture being separated, the column is prepared in ligroin or hexane, the least polar of the eluting solvents.’
- ‘Among other non-hydrophilic organic solvents mentioned above, benzene and ligroin prove to be particularly desirable for practical use.’
- ‘Ligroin is a common solvent used in reactions which consist mostly of mixed hexanes.’
- ‘The crude crystals are recrystallized from a mixture of toluene and ligroin by use of decolorizing charcoal.’
- ‘Measure 3 ml of a 3% aqueous solution of bromine into each of three test tubes and add 1 ml portions of purified ligroin to two of the tubes and 1 ml of cyclohexene to the third.’
Late 19th century: of unknown origin.
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