Density and speed of sound of 1-ethyl-3-methylimidazolium ethyl sulphate with acetic or propionic acid at different temperatures

Singh, Sneha; Bahadur, Indra; Redhi, Gan G.; Ramjugernath, Deresh; Ebenso, Eno E.

doi:10.1016/j.molliq.2014.09.055

Cited by 48 publications

(17 citation statements)

References 40 publications

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“…Isentropic compressibility of pure ILs at atmospheric pressure and at a given temperature or as a function of temperature, is request to gain a better understanding of inter-and intramolecular interactions including ions and substituent effects as well as for better and selective use in various chemical and industrial processes. [13][14][15]17,20,21,23,25,26,29,30,33,36,76,78,[80][81][82][83]85,[87][88][89][90]93,94,96,[102][103][104][107][108][109][110]115,[117][118][119][120][121]123,125,127,[129][130][131][132][133]…”

Section: Calculation Of Volumetric Properties and Thermodynamic Formamentioning

confidence: 99%

Speed of Sound and Ultrasound Absorption in Ionic Liquids

et al. 2017

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A complete review of the literature data on the speed of sound and ultrasound absorption in pure ionic liquids (ILs) is presented. Apart of the analysis of data published to date, the significance of the speed of sound in ILs is regarded. An analysis of experimental methods described in the literature to determine the speed of sound in ILs as a function of temperature and pressure is reported, and the relevance of ultrasound absorption in acoustic investigations is discussed. Careful attention was paid to highlight possible artifacts, and side phenomena related to the absorption and relaxation present in such measurements. Then, an overview of existing data is depicted to describe the temperature and pressure dependences on the speed of sound in ILs, as well as the impact of impurities in ILs on this property. A relation between ions structure and speeds of sound is presented by highlighting existing correlation and evaluative methods described in the literature. Importantly, a critical analysis of speeds of sound in ILs vs those in classical molecular solvents is presented to compare these two classes of compounds. The last part presents the importance of acoustic investigations for chemical engineering design and possible industrial applications of ILs.

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Section: Calculation Of Volumetric Properties and Thermodynamic Formamentioning

confidence: 99%

Speed of Sound and Ultrasound Absorption in Ionic Liquids

et al. 2017

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“…The open literature shows that there are no data currently available for the binary systems studied. The present work is a continuation of our systematic studies on thermodynamic and thermophysical properties of binary or ternary mixtures containing ILs [19][20][21][22][23][24][25][26][27][28][29][30]. The structure of the studied ionic liquid is given in figure 1.…”

Section: Introductionmentioning

confidence: 96%

Influence of the alkyl group on thermophysical properties of carboxylic acids in 1-butyl-3-methylimidazolium thiocyanate ionic liquid at various temperatures

Singh

Bahadur

Redhi

et al. 2015

The Journal of Chemical Thermodynamics

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“…The experimental densities and speeds of sound of pure ILs [C 2 mim][EtSO 4 ], [C 2 mim][NTf 2 ], [C 2 mim][OTf], and [C 2 mim][SCN] at 0.1 MPa pressure and temperature ranges between 298.15 K and 323.15 K, along with literature values, are presented in Table . The molar heat capacity of pure ILs calculated by the group additive method is also presented .…”

Section: Resultsmentioning

confidence: 99%

Insights into Non‐Ideal Behavior of Double Salt Ionic Liquids with Common Cation: Volumetric Behaviour, Molecular Dynamics Simulations and NMR Experiments

2019

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The designer concept of ionic liquid (ILs) allows combination of different types of cation with anion to manipulate desire sets of physico-chemical properties. The additional degree of freedom to improve these properties is addition of second IL, i. e. mixture of two pure ILs, known as "Double Salt Ionic Liquids (DSILs)". Depending on variation in physico chemical properties, DSILs could be ideal or non-ideal solution. The present study was explores non-ideal behaviour of three novel combination of imidazolium based DSILs using physico-chemical properties. The proposed DSILs are homogeneous mixtures of two pure ILs with common cation and two different anions: ethylsulfate and bis(trifluoromethylsulfonyl)imide / trifluoromethanesulfonate / thiocyanate. The densities, 1 and speeds of sound, u for proposed DSILs were determined at different temperatures. The excess molar volumes V m E and excess molar isentropic compressibilities K S,m E were calculated and discussed in view of chemical structures of pure ILs, nature of anions and type of interaction between ions. The V m E were found to be positive for all cases, whereas positive or negative K S,m E were observed for studied DSILs. The behaviour of DSILs was explained by molecular dynamics simulations in terms of interaction energies and hydrogen bonds between components of DSILs as well as 1 H NMR results. The results indicate random distribution of anions around imidazolium cation and structural changes during formulation of DSILs.[a] Dr.

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Density and speed of sound of 1-ethyl-3-methylimidazolium ethyl sulphate with acetic or propionic acid at different temperatures

Cited by 48 publications

References 40 publications

Speed of Sound and Ultrasound Absorption in Ionic Liquids

Speed of Sound and Ultrasound Absorption in Ionic Liquids

Influence of the alkyl group on thermophysical properties of carboxylic acids in 1-butyl-3-methylimidazolium thiocyanate ionic liquid at various temperatures

Insights into Non‐Ideal Behavior of Double Salt Ionic Liquids with Common Cation: Volumetric Behaviour, Molecular Dynamics Simulations and NMR Experiments

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