Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6659644 | The Journal of Chemical Thermodynamics | 2018 | 49 Pages |
Abstract
Densities and ultrasonic speed of ethylene glycol, diethylene glycol and triethylene glycol in (0.00, 0.01, 0.03, 0.05)â¯molâ¯kgâ1 aqueous solutions of glycerol have been measured at Tâ¯=â¯(293.15, 298.15, 303.15, 308.15) K and experimental pressure pâ¯=â¯0.1â¯MPa. From the density data, the apparent molar volume VÏ, the partial molar volume VÏo and the partial molar volumes of transfer ÎVÏo have been calculated for glycols from water to aqueous glycerol solutions. Using ultrasonic speed values apparent molar isentropic compression KÏ,s, partial molar isentropic compression KÏ,so and partial molar isentropic compression of transfer ÎKÏ,so, have been evaluated. The pair and triplet coefficients have been computed from partial molar volumes of transfer and partial molar isentropic compression of transfer. The apparent molar isobaric expansion at infinite dilution (âVÏ0/âT)p, second order derivative (â2VÏ0/âT2)p have also been calculated. The parameters thus obtained have been discussed in terms of (solute-solute)/(solute-solvent) interactions prevailing in the present ternary system along with structure making/structure breaking tendency of glycols in aqueous glycerol solutions.
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Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Kirandeep Kaur, Isha Behal, Kailash Chandra Juglan, Harsh Kumar,