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Excess molar volumes and refractive indices of cis-9-octadecenoic acid + n-alkanes or alkan-1-ols at 298.15 K

The excess molar volumes V m E and refractive indices n D of cis-9-octadecenoic (oleic) acid + a n-alkane (C 7 -C 12 ) or + an alkan-1-ol (C 6 -C 12 ) have been determined at 298.15 K for all mixtures. The excess volumes are negative over the whole composition range. A linear dependence between V m E at the minimum and the number of carbon atoms, N C , and between V m E (x=0.5) and the volume fraction, O 1 , of the second component is found