2008
DOI: 10.1021/je800329m
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Apparent Molal Volumes and Expansibilities of Tetraalkylammonium Bromides in Dilute Aqueous Solutions

Abstract: Densities of aqueous solutions of Me4NBr, Et4NBr, and Bu4NBr have been measured using a magnetic float apparatus. The concentration range was from (0.005 to 0.04) mol·kg−1. The temperatures were (278.15, 288.15, 293.15, and 298.15) K. The experimental values were used to calculate apparent molal volumes, partial molal volumes at infinite dilution, and partial molal expansibilities at (278.15, 288.15, 293.15, and 298.15) K. The ionic contributions to the properties were calculated using the additivity rule. The… Show more

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Cited by 16 publications
(12 citation statements)
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References 29 publications
(63 reference statements)
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“…Calculated parameters and their standard deviations σ are collected in Tables S1−S4 of the Supporting Information along with the data for single solvent solutions reported by other authors. 6,7,10,14,15 As is seen, our data are in good agreement with literature values.…”
Section: Resultssupporting
confidence: 93%
See 1 more Smart Citation
“…Calculated parameters and their standard deviations σ are collected in Tables S1−S4 of the Supporting Information along with the data for single solvent solutions reported by other authors. 6,7,10,14,15 As is seen, our data are in good agreement with literature values.…”
Section: Resultssupporting
confidence: 93%
“…It seems obvious that the properties of the liquids are determined by the structural factors arising from the solute–solvent interactions controlling molar volumes, compressibilities, as well as expansibilities of the solution. Structure and thermodynamic properties of tetraalkylammonium bromides in single solvent systems in water as well as in nonaqueous solvents have been extensively studied and the obtained parameters have been discussed in terms intermolecular interactions. Information concerning the respective salt solutions in mixed solvent systems is much more scarce. The properties of tetraalkylammonium bromides in water–glycol mixed solvents have only been studied for water–pentane-1,5-diol solutions …”
Section: Introductionmentioning
confidence: 99%
“…S v is a measure of ion-ion or solute-solute interactions. The negative values of S v suggest the structure promoting tendency of the bile salt molecules and also indicate that soap-soap interactions in the medium are weak, thereby supporting significant solvent-solvent interactions [25].…”
Section: Systemmentioning
confidence: 97%
“…In case of tetrabutylammonium bromide, the apparent molar volumes and compressibilities of the salt has been obtained in simple binary (aqueous [7] and nonaqueous [8][9][10][11][12][13][14][15]) solutions as well as in the mixed solvent systems [16,17] or in the presence of the additional solute [18,19]. The volumetric characteristics with the other thermodynamic data are useful to studying molecular nature of interactions and salvation in solution.…”
Section: Introductionmentioning
confidence: 99%