Journal
JOURNAL OF CHEMICAL THERMODYNAMICS
Volume 41, Issue 4, Pages 517-521Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jct.2008.11.003
Keywords
Hydroxyl ammonium ionic liquids; Density; Dynamic viscosity; Refractive indices; Thermal decomposition; Coefficient of thermal expansion
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The thermophysical properties of hydroxyl ammonium ionic liquids: density rho, T = (293.15 to 363.15) K; dynamic viscosity eta, T = (298.2 to 348.2) K: and refractive indices n(D), T = (293.15 to 333.15) K have been measured. The coefficients of thermal expansion alpha, values were calculated from the experimental density results using an empirical correlation for T = (293.15 to 363.15) K. The variation of volume expansion of ionic liquids studied was found to be independent of temperature within the range covered in the present work. The thermal decomposition temperature 'T-d' for all the six hydroxyl ammonium ionic liquids is also investigated using thermogravimetric analyzer (TGA). (C) 2008 Elsevier Ltd. All rights reserved.
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