Enthalpies of tetralin and mixtures of tetralin and n-pentane

Abstract

is indebted to the Division of Engineering Research and Development of the University of Rhode Island for financial support through a graduate research

Enthalpy of vaporization and vapor pressure of benzene, toluene, p-xylene, and tetralin between 1 and 16 bar

“…This method of measuring the energy transfer through a wall between the two energy transferring liquids Is less accurate compared to the present method. (The same observations can be made with respect to the experimental work of Lenoir et al (7)). Analysis of their (AHy)P values shows that they deviate from the present values by as much as 3.8%.…”

“…Vapor pressure data for benzene are available due to Bender, Furukawa, and Hyndman (1), Glanvllle and Sage (2), Gornowski, Amick, and Hixon (3), Kalafati, Rasskazov, and Petrov (4), and Zmaczynski (5) In the temperature range of 350 K to the critical point. Two sources due to Zmaczynski (5) and Krase and Goodman (6) were found for experimental vapor pressures of toluene up to 593.75 K. Practically no reliable data exist for p -xylene although some data exist for Tetralin, as reported by Lenoir et al (7).…”

“…Only a few data are reported for Tetralln In the pressure range of 1.499-9.273 bar because of the purity of Tetralln. Lenoir, Hayworth, and Hipkin (7) reported five data points and these values were fitted to eq 4. The calculated values from this fit are less than the present experimental values for p°.…”

“…The calculated values from this fit are less than the present experimental values for p°. Lenoir et al (7) did not report the purity of Tetralln that was used. Also, their reported physical properties, refractive Index (20 °C) and density (60 and 75 °F In Table I of their paper), do not agree with the accurate values of Mair and Streiff (22).…”

“…The only work available on toluene is that of Scott et al (11) and It covers a pressure range 0.2533-2.0265 bar. In the case of Tetralin, Lenoir, Hayworth, and Hipkln (7) have reported AHv in the temperature range of 320-620 K.…”