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Excess molar volumes, partial molar volumes and isentropic compressibilities of binary systems (ionic liquid + alkanol)

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dc.contributor.advisor Deenadayalu, Nirmala
dc.contributor.author Sibiya, Precious N.
dc.date.accessioned 2009-08-28T09:57:02Z
dc.date.available 2009-08-28T09:57:02Z
dc.date.issued 2009
dc.identifier.other 322549
dc.identifier.uri http://hdl.handle.net/10321/459
dc.description Submitted in fulfillment of the academic requirements for the Masters Degree in Technology: Chemistry, Durban University of Technology, 2008. en_US
dc.description.abstract The thermodynamic properties of binary liquid mixtures involving ionic liquids (ILs) with alcohols were determined. ILs are an important class of solvents since they are being investigated as environmentally benign solvents, because of their negligible vapour pressure, and as potential replacement solvents for volatile organic compounds (VOCs) currently used in industries. Alcohols were chosen for this study because they have hydrogen bonding and their interaction with ILs will help in understanding the intermolecular interactions. Also, their thermodynamic properties are used for the development of specific chemical processes. The excess molar volumes of binary mixtures of {1-ethyl-3-methylimidazolium ethylsulfate + methanol or 1-propanol or 2-propanol}, {trioctylmethylammonium bis (trifluoromethyl-sulfonyl) imide + methanol or ethanol or 1-propanol}, {1-buty-3-methylimidazolium methylsulfate + methanol or ethanol or 1-propanol} were calculated from experimental density values, at T = (298.15, 303.15 and 313.15) K. The Redlich-Kister smoothing polynomial was fitted to the excess molar volume data. The partial molar volumes of the binary mixtures {1-ethyl-3-methylimidazolium ethylsulfate + methanol or 1-propanol or 2-propanol}, {trioctylmethylammonium bis (trifluoromethyl-sulfonyl) imide + methanol or ethanol or 1-propanol}, {1-buty-3-methylimidazolium methylsulfate + methanol or ethanol or 1-propanol} were calculated from the Redlich-Kister coefficients, at T = (298.15, 303.15 and 313.15) K. This information was used to better understand the intermolecular interactions with each solvent at infinite dilution. iii The isentropic compressibility of {trioctylmethylammonium bis (trifluoromethyl-sulfonyl) imide + methanol or ethanol or 1-propanol}, were calculated from the speed of sound data at T = 298.15 K. en_US
dc.description.sponsorship National Research Fundation ; Durban University of Technology en_US
dc.format.extent 135 p en_US
dc.language.iso en en_US
dc.subject Ionic solutions en_US
dc.subject Molecular volume en_US
dc.subject Alcohols en_US
dc.subject Chemistry, Physical and theoretical en_US
dc.subject Volumetric analysis en_US
dc.title Excess molar volumes, partial molar volumes and isentropic compressibilities of binary systems (ionic liquid + alkanol) en_US
dc.type Thesis en_US
dc.dut-rims.pubnum DUT-002237


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