Solubility of Alkylbenzenes and a Model for Predicting the Solubility of Liquid Organics in High-Temperature Water

Abstract

The solubility of ethylbenzene, m-xylene, and benzene in water was determined using a laboratory-made system at temperatures ranging from 298 K to 473 K and a pressure of 50 bars. The solubility was enhanced by at least 1 order of magnitude by increasing the temperature from ambient to 473 K. A simple approximation model was developed to predict the solubility of liquid organics in high-temperature water. This model delivers an excellent estimation of the solubility of small molecules of liquid organic compounds in water at temperatures at or higher than 373 K.

Correlation for the variations with temperature of solute solubilities in high temperature water

“…Solute solubility database and data correction Table 1 summarizes the solutes and solubility data sources [4][5][6][7][8][9][10][11][12][13][14] that were considered to derive an alternative correlation to Eq. (1) for the effect of system temperature on solute solubility [5] in liquid water, at the tabulated temperature and pressure ranges, and the units used to report the solute's solubility in water.…”

The solubility of sebacic acid in subcritical water using the response surface methodology

“…Kayan et al [38] achieved a better approximation model for the solubility prediction of the organic acids in subcritical water using Eq. (6).…”

Direct and Indirect Applications of Sub- and Supercritical Water in Food-Related Analysis

“…Figure 8.5 thus provides additional indication of the improving ability of water to solvate organic nonelectrolyte solutes with the increasing temperature. The (semi)empirical models developed to correlate the aqueous solubilities of a specific class of solutes across wide intervals of temperature were largely focused on aromatic hydrocarbons Karásek et al 2006b;Mathis et al 2004).…”