Enthalpic interactions in aqueous strong electrolytes upon addition of ionic liquids

2018 ◽  
Vol 20 (16) ◽  
pp. 11089-11099 ◽  
Author(s):  
Preeti Jain ◽  
Anil Kumar
Keyword(s):  
Ionic Liquids ◽  
Thermodynamic Properties ◽  
Molar Enthalpy ◽  
Partial Molar Enthalpy ◽  
Interaction Parameters ◽  
Ionic Interactions ◽  
Enthalpic Interaction ◽  
Strong Electrolytes ◽  
Relative Apparent Molar Enthalpy ◽  
Excess Partial Molar Enthalpy

The present study deals with the inter-ionic interactions between strong electrolytes and ionic liquids based on the thermodynamic properties such as excess partial molar enthalpy, HEIL, relative apparent molar enthalpy, ϕL, and the enthalpic interaction parameters.

Thermodynamic properties of water in the water-poor region of binary water + alcohol mixtures

2005 ◽  
Vol 83 (5) ◽  
pp. 420-429 ◽  
Author(s):  
Karin Liltorp ◽  
Peter Westh ◽  
Yoshikata Koga
Keyword(s):  
Hydrogen Bonding ◽  
Composition Dependence ◽  
Pure Water ◽  
Molar Enthalpy ◽  
Partial Molar Enthalpy ◽  
Alcohol Water ◽  
Mixing Schemes ◽  
Alcohol Mixtures ◽  
Excess Partial Molar Enthalpy ◽  
Water Alcohol

In our previous thermodynamic studies, we suggested that alcohol molecules in water-poor water + alcohol mixtures exist as alcohol clusters in a form similar to the pure alcohols. Here, we use calorimetry and densitometry to investigate how H2O interacts with alcohol clusters in water-poor binary aqueous mixtures of 12 different alcohols. The composition dependence of the measured excess partial molar enthalpy and volume of water (HEW and VEW), along with entropy data calculated from HEW and literature data for excess chemical potentials, showed that in water-poor solutions of small alcohols such as methanol, ethanol, and 1-propanol, mutual water–water interactions are endothermic, but entropically favorable. Conversely, in long-chain solvents such as 1-octanol and 1-decanol, the interaction is exothermic and entropically unfavorable. We suggest that these observations reflect water–alcohol hydrogen bonding in short-chain solvents and water clustering with more hydrogen bonding than in pure water or "dewetting" in mixtures of the longer alcohols, respectively. The composition dependence of HEW was also used to locate anomalies that specify the boundary between the mixing schemes characterizing the intermediate and the water-poor regions of alcohol + water mixtures.Key words: aqueous alkane-mono-ols, excess partial molar enthalpy, entropy and volume, mixing schemes.

Excess Partial Molar Enthalpy of 1-Propanol in 1-Propanol−NaCl−H2O at 25 °C:  The Effect of NaCl on Molecular Organization of H2O†

1999 ◽  
Vol 103 (15) ◽  
pp. 2981-2983 ◽  
Author(s):  
Hiroshi Matsuo ◽  
Eric C. H. To ◽  
Denise C. Y. Wong ◽  
Seiji Sawamura ◽  
Yoshihiro Taniguchi ◽  
...  
Keyword(s):  
Molar Enthalpy ◽  
Partial Molar Enthalpy ◽  
Molecular Organization ◽  
Excess Partial Molar Enthalpy

Study on thermodynamic properties and estimation of polarity of ionic liquids {[Cnmmim][NTf2] (n = 2, 4)}

RSC Advances ◽  
2014 ◽  
Vol 4 (58) ◽  
pp. 30725 ◽  
Author(s):  
Jie Wei ◽  
Tianyou Ma ◽  
Xiaoxue Ma ◽  
Wei Guan ◽  
Qingshan Liu ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Thermodynamic Properties

Thermodynamic properties of CO2 absorption in hydroxyl ammonium ionic liquids at pressures of (100–1600)kPa

2009 ◽  
Vol 41 (10) ◽  
pp. 1069-1073 ◽  
Author(s):  
K.A. Kurnia ◽  
F. Harris ◽  
C.D. Wilfred ◽  
M.I. Abdul Mutalib ◽  
T. Murugesan
Keyword(s):  
Ionic Liquids ◽  
Thermodynamic Properties ◽  
Co2 Absorption ◽  
Ammonium Ionic Liquids

Theoretical Calculation of the Thermodynamic Properties of 20 Amino Acid Ionic Liquids

2018 ◽  
Vol 122 (46) ◽  
pp. 10548-10557 ◽  
Author(s):  
Bingyu Nie ◽  
Ruifang Li ◽  
Yang Wu ◽  
Xing Yuan ◽  
Wei Zhang
Keyword(s):  
Ionic Liquids ◽  
Amino Acid ◽  
Thermodynamic Properties ◽  
Theoretical Calculation
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