New pressure-temperature-overall composition vapor-liquid equilibrium (VLE) data are reported for the ammonia-water system at five temperatures between 20 and 140 °C and up to 500 pela. These data have been converted to T-P-x data, and vapor-phase compositions have been calculated by means of a Rediich-Kwong equation of state modified to Include Peneloux's volume translation and a density-dependent mixing rule. In order to achieve agreement of calculated vapor-phase compositions with previous literature results, H was necessary to use different kij values In the vapor and liquid phases. © 1991, American Chemical Society. All rights reserved.
T. M. Smolen et al., "Vapor-Liquid Equilibrium Data For The NH3-H2O System And Its Description With A Modified Cubic Equation Of State," Journal of Chemical and Engineering Data, vol. 36, no. 2, pp. 202 - 208, American Chemical Society, Apr 1991.
The definitive version is available at https://doi.org/10.1021/je00002a017
Chemical and Biochemical Engineering
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01 Apr 1991