Journal of Solution Chemistry p. 1101 - 1109 (2001)
Update date:2022-08-30
Topics:
Tutaj
Gonzalez-Perez
Czapkiewicz
Del Castillo
Rodriguez
Apparent molar volumes at infinite dilution of benzyltrimethylammonium bromide and its butyl and hexyl homologs at 15, 25, and 35°C and of dibenzyldimethylammonium bromide at 25°C in aqueous solution were estimated from density measurements. The additivity rule for the contribution of the methylene groups to the apparent molar volumes was found to be obeyed within a broad range of homologs, which covers the parent salt and the dodecyldimethylbenzylammonium bromide. The volumetric contribution of the phenylene (-C6H4-) group was estimated to be 61 cm3-mol-1 at 25°C. A value of - 16.9 ± 0.3 cm3-mol-1 was suggested for the volumetric contribution of the N+ fragment to the apparent molar volume of alkylbenzyldimethylammonium salts.
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Doi:10.1016/S0040-4020(01)90426-0
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