Solubility of aromatic hydrocarbons in water and sodium chloride solutions of different ionic strengths: C2-Substituted benzenes

Abstract

A b " , D. S.; Raumltz, J. M. Am. Inst. Chem. €ng. J . 1975. 21, 116. 250. R m . H.; Rausnttz. J. M. Am. Inst. Chem. €ng. J . 1968, 74. 135. chemlcel€ng)wenhg; John wlley a Sons: New York. 1981. Blenco, A.; Mea, J. M.; Arce. A.: Conea, A. Can. J . Chem. €ng. 1988, 86. 138.(9) Roddy. J. W.; Coleman. C. F. Ind. w . Ckm. Fudem. 1981, 20, Hsnky, E. J.; m. J. D. E m -s b p g e " d b n Operebbns h The eolu#mkr of ethylbenzene and 1,2-, 1,3-, and 1,4dhnethylbenzene In aqueous sodium chkrMe sohtiono having knk strengths ranglng from 0 to 5.00 mol dmJ have been detmIned at 298.15 K. The sohbiiltles were detcnmined by headspace analysis using a multlpkkr/.cth interrupted4low (MIIF) technique. The values for the Henry's law constants and aqueous/vapor partlth coefficients for the compounds in the odutions dudhd are a b ghren. Corrdatknr between the

Measurement of Setschenow constants for six hydrophobic compounds in simulated brines and use in predictive modeling for oil and gas systems

“…The salting-out effect for hydrophobic compounds in both this study and the literature in NaCl and CaCl2 solutions exhibited log-linear behavior up to 2 -5 M NaCl and 1.5 -2 M CaCl2. This has been shown for BTEX compounds, (Keeley et al, 1991(Keeley et al, , 1988 as well as the PAHs and sulfur heterocyclics in this study. Fluorene and dibenzothiophene displayed log-linear salting-out behavior up to 2 M NaCl, phenanthrene displayed log-linear salting-out behavior up to 3 M NaCl, benzothiophene displayed log-linear salting-out behavior to 4 M NaCl, and naphthalene and thiophene displayed log-linear salting-out behavior up to 5 M NaCl.…”

“…Reported aqueous solubility data are available for benzene, toluene, ethylbenzene, and the xylene isomers (BTEX) up to 5 M NaCl (Keeley et al, 1991(Keeley et al, , 1988. However, these compounds are relatively small and monopolar, and more data on representative compounds from different classes of organic compounds are needed to assess the validity of the Setschenow Equation over a broader range of salt concentration, and to determine if Setschenow constants determined at low salt concentration can be extended to brines (≥1 M).…”

Experimental and Correlated Liquid–Liquid Equilibrium Data for (Water + Propionic Acid + Ethylbenzene or Benzyl Benzoate) Ternary Systems

“…The measured mutual solubility data of water–ethylbenzene are listed in Table . As shown in Figure a,b, the binaries for the ethylbenzene–water system compared with already available binary data sets, − which within the uncertainties of both the measured and reported data have no significant errors. The differences can be due to the different experimental conditions and procedures, temperature fluctuations, accuracy of the instrument, and mole fraction measurements during sampling and testing.…”

Removal of the antibiotic metronidazole by adsorption on various carbon materials from aqueous phase

“…However, the mass of MNZ adsorbed markedly increased when the pH was raised from 10 to 12, indicating that the adsorption mechanism is mainly dominated by both dispersive and hydrophobic interactions at pH = 12. This trend may be explained recalling that the solubility of MNZ is reduced at pH = 12 because of the high electrolyte concentration, thereby enhancing the interactions between the hydrophobic carbon surface sites and MNZ molecules [32,33] and favoring the adsorption of MNZ.…”