Development of Abraham model correlations for solute transfer into both 2-propoxyethanol and 2-isopropoxyethanol at 298.15 K

Abstract

Infinite dilution activity coefficients (γ ∞) were measured at 298 K for 9 different aliphatic hydrocarbons (alkanes, cycloalkanes, alkenes), 7 different aromatic compounds (benzene, alkylbenzenes, halobenzenes), and for 1,2-dichloropropane, dichloromethane, acetone, acetonitrile, tetrahydrofuran, 1,4-dioxane and 2-propanol dissolved in both 2-propoxyethanol and 2-isopropoxyethanol at 298 K using a headspace gas chromatographic method. As part of the experimental study solubilities of 18 and 20 crystalline organic nonelectrolyte solutes were determined in 2-propoxyethanol and 2-isopropoxyethanol, respectively, at 298 K using a uv/visible spectrophotometric method. The experimental values were converted to gas-toalkoxyethanol, water-to-alkoxyethanol partition coefficients, and molar solubility ratios using standard thermodynamic relationships. Abraham model correlations for solute transfer into both alkoxyethanols were derived from the calculated solubility ratios and partition coefficients. The

Limiting Diffusion Coefficients for Ions and Nonelectrolytes in Solvents Water, Methanol, Ethanol, Propan-1-ol, Butan-1-ol, Octan-1-ol, Propanone and Acetonitrile at 298 K, Analyzed Using Abraham Descriptors

“…1 (E, S, A, B, V, J + and J − ) are properties or descriptors of the solutes and the coefficients (c, e, s, a, b, v, j + and j − ) are the complementary properties of the solvent system. Solute and solvent properties have been described in detail in earlier publications [13][14][15][16][17][18][19][20][21], there are several reviews on our method [22][23][24], and a number of applications [25][26][27] and so only an outline will be given here. E is the solute excess molar refraction in cm 3 ·mol −1 /10, S is a measure of the solute polarity/polarizability, A and B refer to the hydrogen bond acidity and hydrogen bond basicity of the solute, and V is McGowan's characteristic molecular volume of the solute in cm 3 ·mol −1 /100 [28].…”

Abraham Model Correlations for Triethylene Glycol Solvent Derived from Infinite Dilution Activity Coefficient, Partition Coefficient and Solubility Data Measured at 298.15 K

“…Our contribution in the area of solvent replacement has been to characterize the solubilizing properties of more than 100 different organic solvents [9][10][11][12][13][14], binary aqueousmethanol [15] and aqueous-ethanol solvent mixtures [16,17], and 70 different ionic liquids [18] through experimental measurements and developing mathematical expressions that correlate the molar solubility, and both gas-to-organic solvent and water-to-organic solvent partition coefficients of dissolved solutes. Solubilization is an important consideration in selecting an appropriate solvent for chemical extractions and recrystallization methods.…”

Abraham model ion-specific equation coefficients for the 1-butyl-2,3-dimethyimidazolium and 4-cyano-1-butylpyridinium cations calculated from measured gas-to-liquid partition coefficient data

“…Abraham model correlations have been reported for well over 100 total different tradition organic solvents [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] and IL organic solvents, [47][48][49][50][51][52][53][54][55][56][57][58][59][60][61] as well as for binary aqueous-ethanol [62] mixtures. Our focus in the present study is IL solvents.…”