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Publication Citation: Gas Saturation Vapor Pressure Measurements of Mononitrotoluene Isomers from 283.15 to 313.15 K

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Author(s): Jason A. Widegren; Thomas J. Bruno;
Title: Gas Saturation Vapor Pressure Measurements of Mononitrotoluene Isomers from 283.15 to 313.15 K
Published: January 14, 2010
Abstract: A gas saturation apparatus capable of simultaneous measurements on eighteen samples was used for this work. The vapor pressures of 2-nitrotoluene (2-NT), 3-nitrotoluene (3-NT), 4-nitrotoluene (4-NT) and n-tetradecane (a control compound) were measured with this apparatus over the temperature range 283.15 K to 313.15 K. Over this temperature range, the vapor pressure of 2-NT ranged from 5.53 Pa to 61.1 Pa, the vapor pressure of 3-NT ranged from 3.39 Pa to 37.8 Pa, and the vapor pressure of 4-NT ranged from 1.25 Pa to 26.4 Pa. The expanded (k = 2) uncertainty in vapor pressures is estimated to be 28%. The enthalpies of vaporization or sublimation were determined using the Clausius-Clapeyron equation.
Citation: Journal of Chemical and Engineering Data
Volume: 55
Pages: pp. 159 - 164
Keywords: vapor pressure; enthalpy of vaporization; heat of vaporization; enthalpy of sublimation; heat of sublimation; concatenated gas saturation technique; entrainment; transpiration; transport; gas current method; n-tetradecane; nitrotoluene; mononitrotoluene; 2-nitrotoluene; 3-nitrotoluene; 4-nitrotoluene; 2-methylnitrobenzene; 3-methylnitrobenzene; 4-methylnitrobenzene
Research Areas: Properties, Chemistry
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