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Ion-Ion and Ion-Solvent Interactions of Tetraalkyl Ammonium Bromide in Mixed DMF-Water Systems at Different Temperatures

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Abstract

Density (ρ), viscosity (η) and ultrasonic velocity (U) of tetraethylammonium bromide (TEAB) and tetrapropylammonium bromide (TPAB) in 10, 20 and 30% of N,N-dimethylformamide (DMF) and water mixtures have been measured as a function of electrolyte concentration at 303, 308 and 313 K. The experimental values of ρ,η and U are used to calculate free volume (V f), internal pressure (π i), solvation number (S n) and viscosity B-coefficient. These parameters are used to discuss the ion-solvent and ion-ion interactions and structure making tendency of the electrolyte.

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Authors and Affiliations

  1. Department of Physics, Annamalai University, Annamalai Nagar, 608 002, Tamil Nadu, India

    B. Hemalatha, P. Vasantharani & K. Karthikeyani Vijayakumari

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  1. B. Hemalatha
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  2. P. Vasantharani
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  3. K. Karthikeyani Vijayakumari
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Correspondence to B. Hemalatha.

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Hemalatha, B., Vasantharani, P. & Vijayakumari, K.K. Ion-Ion and Ion-Solvent Interactions of Tetraalkyl Ammonium Bromide in Mixed DMF-Water Systems at Different Temperatures. J Solution Chem 38, 947–955 (2009). https://doi.org/10.1007/s10953-009-9422-3

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  • DOI: https://doi.org/10.1007/s10953-009-9422-3

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