Molar heat capacities of the (water+acetonitrile) mixtures at T=(283.15, 298.15, 313.15, and 328.15)K

Kolker, A. M.; Safonova, L. P.

doi:10.1016/j.jct.2010.04.019

Cited by 24 publications

(6 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(1) 4181.3 (1) ACN 0.19 (2) 2233.6 (3) 40/60(v%/v%) ACN/H2O 0.41 (4) 3785.8 (3) (1) NIST (2) Hulse et al, 2004. [15] (3) Kolker and Safonova, 2010 [16] . In case of the mixture, the Cp value was determined by linear interpolation between the two closest mixture compositions.…”

Section: Simulation Proceduresmentioning

confidence: 99%

A multiscale modelling study on the sense and nonsense of thermal conductivity enhancement of liquid chromatography packings and other potential solutions for viscous heating effects

Deridder

Smits

Broeckhoven

et al. 2020

Journal of Chromatography A

View full text Add to dashboard Cite

show abstract

Section: Simulation Proceduresmentioning

confidence: 99%

A multiscale modelling study on the sense and nonsense of thermal conductivity enhancement of liquid chromatography packings and other potential solutions for viscous heating effects

Deridder

Smits

Broeckhoven

et al. 2020

Journal of Chromatography A

View full text Add to dashboard Cite

show abstract

“…The data for the molar volumes (from 0.1 to 250 MPa and from 278 to 343 K) and molar heat capacities (from 283 to 328 K at constant atmospheric pressures) of any mixtures of acetonitrile and water were taken from the literature [34,35].…”

Section: Molar Volumes and Molar Heat Capacity Data Of Acetonitrile-wmentioning

confidence: 99%

“…The heat capacity of a mixture of acetonitrile and water (70/30, v/v) at atmospheric pressure and 308 K is C p = 2.9 × 10 6 J/m 3 -K [35]. Its thermal expansion coefficient at 500 bar and T = 298 K is = 1.3 × 10 −3 K −1 [34].…”

Section: Acetonitrile-water Mixture (70/30 V/v)mentioning

confidence: 99%

Quasi-adiabatic vacuum-based column housing for very high-pressure liquid chromatography

Gritti

Gilár

Jarrell

2016

Journal of Chromatography A

View full text Add to dashboard Cite

“…Relation was used to determine hydration parameters of solutions of urea, urotropine, and acetonitrile. The compressibility of the free water at constant entropy of solution was calculated using relationship ; heat capacities of aqueous solutions of urea and urotropine were taken from ref and that of acetonitrile from ref . The linear character of the dependence Y K , S = f (β 1 V 1 * ) ( R corr.…”

Section: Nonelectrolytes In Aqueous Solutionsmentioning

confidence: 99%

Solvation of Electrolytes and Nonelectrolytes in Aqueous Solutions

Afanas'ev

2011

J. Phys. Chem. B

View full text Add to dashboard Cite

A new theory of electrolyte and nonelectrolyte solutions has been developed which, unlike the Debye-Hückel method applicable for small concentrations only, makes it possible to estimate thermodynamic properties of a solution in a wide range of state parameters. One of the main novelties of the proposed theory is that it takes into account the dependence of solvation numbers upon the concentration of solution, and all changes occurring in the solution are connected with solvation of the stoichiometric mixture of electrolyte ions or molecules. The present paper proposes a rigorous thermodynamic analysis of hydration parameters of solutions. Ultrasound and densimetric measurements in combination with data on isobaric heat capacity have been used to study aqueous solutions of electrolytes NaNO3, KI, NaCl, KCl, MgCl2, and MgSO4 and of nonelectrolytes urea, urotropine, and acetonitrile. Structural characteristics of hydration complexes have been analyzed: hydration numbers h, the proper volume of the stoichiometric mixture of ions without hydration shells V(2h), compressibility β(1h), and the molar volume of water in hydration shells V(1h), their dependencies on concentration and temperature. It has been shown that for aqueous solutions the electric field of ions and molecules of nonelectrolytes has a greater influence on the temperature dependence of the molar volume of solution in hydration shells than a simple change of pressure. The cause of this effect may be due to the change in the dielectric permeability of water in the immediate vicinity of hydrated ions or molecules. The most studied compounds (NaCl, KCl, KI, MgCl2) have been studied in a wider range of solute concentrations of up to 4-5 mol/kg. Up to the complete solvation limit (CSL), the functions V(1h) = f(T) and β(1h) = f(T) are linear with a high correlation factor, and the dependence Y(K,S) = f(β1V1*) at all investigated concentrations of electrolytes and nonelectrolytes up to the CSL enables h and β(h)V(h) to be determined on the basis of relationships obtained in the study. The behavior of nonelectrolyte solutions is no different from that of electrolyte solutions, although it is possible to trace the difference between hydrophobic and hydrophilic interactions.

show abstract

Molar heat capacities of the (water+acetonitrile) mixtures at T=(283.15, 298.15, 313.15, and 328.15)K

Cited by 24 publications

References 19 publications

A multiscale modelling study on the sense and nonsense of thermal conductivity enhancement of liquid chromatography packings and other potential solutions for viscous heating effects

A multiscale modelling study on the sense and nonsense of thermal conductivity enhancement of liquid chromatography packings and other potential solutions for viscous heating effects

Quasi-adiabatic vacuum-based column housing for very high-pressure liquid chromatography

Solvation of Electrolytes and Nonelectrolytes in Aqueous Solutions

Contact Info

Product

Resources

About