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Title: Limiting activity coefficients of some aromatic and aliphatic nitro compounds in water

Abstract

Limiting activity coefficients of nine nitroaromatic compounds and four nitroalkanes in water were determined in the range of environmentally related temperatures by measuring suitable phase equilibria. For liquid and solid nitroaromatics (nitrobenzene, 2-nitrotoluene, 3-nitrotoluene, 4-nitrotoluene, 2-nitrophenol, 3-nitrophenol, 4-nitrophenol, 1-chloro-2-nitrobenzene, and 1-chloro-4-nitrobenzene) the aqueous solubilities were measured by a conventional batch contacting method with UV spectrophotometric analysis, while for nitroalkanes (nitromethane, nitroethane, 1-nitropropane, and 2-nitropropane) the air-water partitioning (Henry`s law constant H{sub 12} or air-water partition coefficient K{sub aw}) was determined by the inert gas stripping method employing gas chromatography. Whenever possible, results were compared to literature values. Calculation of H{sub 12} or K{sub aw} for nitroaromatics from the measured solubilities is hindered by the lack of reliable vapor pressure data. On the basis of the temperature dependences of the solubilities measured, the enthalpies of solution at infinite dilution for the nitroaromatics in water were evaluated.

Authors:
;  [1]
  1. Inst. of Chemical Technology, Prague (Czech Republic). Dept. of Physical Chemistry
Publication Date:
OSTI Identifier:
697127
Resource Type:
Journal Article
Journal Name:
Journal of Chemical and Engineering Data
Additional Journal Information:
Journal Volume: 44; Journal Issue: 5; Other Information: PBD: Sep-Oct 1999
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; NITROBENZENE; NITROPHENOL; NITRO COMPOUNDS; CHLORINATED AROMATIC HYDROCARBONS; SOLUBILITY; SOLUTION HEAT; GROUND WATER; WASTE PROCESSING

Citation Formats

Benes, M., and Dohnal, V. Limiting activity coefficients of some aromatic and aliphatic nitro compounds in water. United States: N. p., 1999. Web. doi:10.1021/je9900326.
Benes, M., & Dohnal, V. Limiting activity coefficients of some aromatic and aliphatic nitro compounds in water. United States. doi:10.1021/je9900326.
Benes, M., and Dohnal, V. Wed . "Limiting activity coefficients of some aromatic and aliphatic nitro compounds in water". United States. doi:10.1021/je9900326.
@article{osti_697127,
title = {Limiting activity coefficients of some aromatic and aliphatic nitro compounds in water},
author = {Benes, M. and Dohnal, V.},
abstractNote = {Limiting activity coefficients of nine nitroaromatic compounds and four nitroalkanes in water were determined in the range of environmentally related temperatures by measuring suitable phase equilibria. For liquid and solid nitroaromatics (nitrobenzene, 2-nitrotoluene, 3-nitrotoluene, 4-nitrotoluene, 2-nitrophenol, 3-nitrophenol, 4-nitrophenol, 1-chloro-2-nitrobenzene, and 1-chloro-4-nitrobenzene) the aqueous solubilities were measured by a conventional batch contacting method with UV spectrophotometric analysis, while for nitroalkanes (nitromethane, nitroethane, 1-nitropropane, and 2-nitropropane) the air-water partitioning (Henry`s law constant H{sub 12} or air-water partition coefficient K{sub aw}) was determined by the inert gas stripping method employing gas chromatography. Whenever possible, results were compared to literature values. Calculation of H{sub 12} or K{sub aw} for nitroaromatics from the measured solubilities is hindered by the lack of reliable vapor pressure data. On the basis of the temperature dependences of the solubilities measured, the enthalpies of solution at infinite dilution for the nitroaromatics in water were evaluated.},
doi = {10.1021/je9900326},
journal = {Journal of Chemical and Engineering Data},
number = 5,
volume = 44,
place = {United States},
year = {1999},
month = {9}
}