Thermodynamics of vaporization of some alkyladamantanes |
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| Institution: | 1. Department of Chemistry, Moscow State University, 119899, Moscow, Russia;2. Department of Chemical Technology, Samara State Technical University, Samara, Russia;1. Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria;2. Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford St, Cambridge, MA 02138, USA;3. Medicines Research Centre, GlaxoSmithKline, Gunnel''s Wood Road, Stevenage, Herts SG1 2NY, United Kingdom;1. School of Chemistry, College of Science, University of Tehran, Tehran, Iran;2. F H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan;1. Catalytic Processes and Materials, MESA+ Institute for Nanotechnology, University of Twente, Enschede 7500AE, The Netherlands;2. Aalto University, School of Chemical Technology, Department of Biotechnology and Chemical Technology, P.O. Box 16100, 00076 Aalto, Finland |
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| Abstract: | The boiling temperature of 1,3-dimethyladamantane was measured by comparative ebulliometry over the pressure range 6 < (p / kPa) < 100. The temperature dependencies of saturation vapour pressure and enthalpy of vaporization, and the normal boiling temperature,Tb = 476.53 K, were derived. The enthalpy of vaporization,ΔlgHmo = (49.21 ± 0.2)kJ · mol ? 1, was calorimetrically measured atT = 308.15 K. The experimental and calculatedΔlgHmo values were found to agree within the error limits. Densities of the liquid phase were measured at the temperatures (293.15, 298.15, and 303.15) K. The experimental vapour pressures of 1,3-dimethyladamantane and of the previously studied 1,3,5-trimethyladamantane were extrapolated to the regions of the liquid phases from the triple to the critical temperatures. |
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