Aqueous solubility depression for hydrophobic organic chemicals in the presence of partially miscible organic solvents
Article Abstract:
A study aimed at examining the solubility of hydrophobic organic chemicals (HOC) in water saturated with partially miscible organic solvents (PMOS) is presented. The use of a recirculating generator column technique allowed the measurements of solubility of the stationary-phase chemical (HOC) in the mobile phase (PMOS solution). The results of the experiment indicated solubility depression in all the HOCs examined. It is further noted that the solubility depression of both the HOCs and PMOS increases as the chemical hydrophobicity increases.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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Nonlinearity in the slopes of Clausius-Clapeyron plots for SVOCs
Article Abstract:
An analysis of the Clausius-Clapeyron plots for trans-chlordane showed that the observed non-linearity of the plots with respect to temperature stems from the characteristic of the compound, which affects both exchange and transport processes at a site. The curvature of the CC plots stem from the interplay between long range transport and local exchange is shown to be functional in the transport of the semivolatile organic compound from the air to the substrate.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
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Effects of chemical mechanism uncertainties on the reactivity quantification of volatile organic compounds using a three-dimensional air quality model
Article Abstract:
A three-dimensional air quality model proved useful in examining the uncertainty in reactivity quantification resulting from a set of reaction rate constant uncertainties. Uncertainties in rate constants for aldehyde photolysis, nitric acid formation and decomposition of peroxy acetyl nitrate and peroxy propionyl nitrate were found to have the greatest effect on relative compound reactivity values.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
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