Determination and Correlation of Refractive Index of Amino Acids Ionic Liquids-Water-Ethanol Binary and Ternary System

2020 ◽  
Vol 20 (9) ◽  
pp. 5693-5702
Author(s):  
Gang Tian ◽  
Cong Yang ◽  
Li Wang ◽  
Yongjun Han ◽  
Lijuan Wu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Ionic Liquids ◽  
Binary System ◽  
Ternary System ◽  
Glutamic Acid ◽  
Empirical Relationship ◽  
Molar Fraction ◽  
Polynomial Equation ◽  
Measured Concentration ◽  
Kister Equation

The refractive indexes of three ionic liquids, glutamic acid tetrafluoroborate ([GA]BF4), glutamic acid double trifluoromethyl sulfonyl amine salts ([GA]TF2N), glutamic acid hexafluorophosphate ([GA]PF6), with ethanol and/or water systems under 10~35 °C were studied. The excessive refractive index of the systems and the relationship between the refractive index and the constituent molar fraction at 20 °C, and the empirical relationship between the excess refractive rate and the constituent mole fraction were established. The experimental results show that the excess refractive index is positive in the measured concentration range, and the refractive index of ethanol+water with the increase in the composition appears maximum and the refractive index of ethanol/water+ [GA]BF4, ethanol/water+[GA]PF6, ethanol/water+[GA]TF2N system is increased with the increase in composition. By using the Redlich-Kister equation to correlate the binary system and the excess refractive index of ternary system, the fitting results show that the refractive index of ternary system can be estimated using the refractive index of the polynomial equation of binary system.

Liquid densities, heat capacities, refractive index and excess quantities for {protic ionic liquids+water} binary system

2009 ◽  
Vol 41 (6) ◽  
pp. 799-808 ◽  
Author(s):  
Mérièm Anouti ◽  
Magaly Caillon-Caravanier ◽  
Yosra Dridi ◽  
Johan Jacquemin ◽  
Christopher Hardacre ◽  
...  
Keyword(s):  
Refractive Index ◽  
Ionic Liquids ◽  
Binary System ◽  
Heat Capacities ◽  
Protic Ionic Liquids ◽  
Excess Quantities

Eutectic ionic liquid mixtures and their effect on CO2 solubility and conductivity

RSC Advances ◽  
2015 ◽  
Vol 5 (63) ◽  
pp. 51407-51412 ◽  
Author(s):  
Anna S. Ivanova ◽  
Thomas Brinzer ◽  
Elliot A. Roth ◽  
Victor A. Kusuma ◽  
John D. Watkins ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Binary System ◽  
Liquid Mixtures ◽  
Short Chain ◽  
Co2 Solubility

A simple binary system of compounds resembling short-chain versions of popular ionic liquids has been shown to have alloying properties.

Easy prediction of the refractive index for binary mixtures of ionic liquids with water or ethanol

2012 ◽  
Vol 47 ◽  
pp. 219-222 ◽  
Author(s):  
E. Rilo ◽  
M. Domínguez-Pérez ◽  
J. Vila ◽  
L. Segade ◽  
M. García ◽  
...  
Keyword(s):  
Refractive Index ◽  
Ionic Liquids ◽  
Binary Mixtures

Enthalpies of mixing in ternary Al–Gd–Mn liquid alloys

2021 ◽  
Vol 112 (9) ◽  
pp. 735-742
Author(s):  
Michael Ivanov ◽  
Natalia Usenko ◽  
Natalia Kotova
Keyword(s):  
Binary System ◽  
Ternary System ◽  
Liquid Alloys ◽  
Enthalpies Of Mixing ◽  
Minimum Value ◽  
Isoperibolic Calorimetry ◽  
Wide Range ◽  
Constituent Binary

Abstract The enthalpies of mixing in liquid alloys of the ternary Al–Gd–Mn system were determined over a wide range of compositions by means of isoperibolic calorimetry at 1650 K. The measurements of the partial enthalpies of components were performed along five sections: for the ΔH̅ Al (sections with x Gd/x Mn = 0.30/0.70 and 0.65/0.35 for x Al changed from 0 up to 0.30); for the ΔH̅ Gd (x Al/x Mn = 0.80/ 0.20 and 0.50/0.50 for x Gd changed from 0 up to 0.30); for the ΔH̅ Mn (x Al/x Gd = 0.29/0.71 for x Mn changed from 0 up to 0.26). The enthalpies of mixing in the ternary system were found to be exothermic and steadily increasing in absolute values from the Mn corner towards the Al–Gd constituent binary system, reaching the minimum value of approximately – 37 kJ · mol–1 in the vicinity of the Al0.6Gd0.4 composition, evidently related to the formation of stable Al2Gd phase.

Solubility of the Ketoconazole (an Antifungal Drug) in Supercritical Carbon Dioxide and Menthol as a Cosolvent (Ternary System): Experimental Data and Empirical Correlations

2021 ◽  
Author(s):  
Gholamhossein Sodeifian ◽  
Seyed Ali Sajadian ◽  
Fariba Razmimanesh ◽  
Seyed Mojtaba Hazaveie
Keyword(s):  
Experimental Data ◽  
Carbon Dioxide ◽  
Binary System ◽  
Supercritical Carbon Dioxide ◽  
Ternary System ◽  
Drug Solubility ◽  
Analysis Method ◽  
Empirical Correlations ◽  
Semiempirical Models ◽  
Supercritical Carbon

Abstract One of the main steps in choosing the drug nanoparticle production processes by supercritical carbon dioxide (SC-CO2) is determining the solubility of the solid solute. For this purpose, the solubility of Ketoconazole (KTZ) in the SC-CO2, binary system, as well as in the SC-CO2-menthol (cosolvent), ternary system, was measured at 308–338 K and 12–30 MPa using the static analysis method. The KTZ solubility in the SC-CO2 ranged between 1.70×10− 6 and 8.02×10− 4, while drug solubility in the SC-CO2 with cosolvent varied from 2.7×10− 5 to 1.96×10− 4. This difference indicated the significant effect of menthol cosolvent on KTZ solubility in the SC-CO2. Moreover, KTZ solubilities in the two systems were correlated by several empirical and semiempirical models. Among them, Sodeifian et al., Bian et al., MST, and Bartle et al. models can more accurately correlate experimental data for the binary system than other used models. Also, the Sodeifian and Sajadian model well fitted the solubility data of the ternary system with AARD,%= 6.45, Radj= 0.995.

scholarly journals Thermo Physical Properties for Binary Mixture of Dimethylsulfoxide and Isopropylbenzene at Various Temperatures

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Maninder Kumar ◽  
V. K. Rattan
Keyword(s):  
Refractive Index ◽  
Binary Mixture ◽  
Speed Of Sound ◽  
Excess Molar Volume ◽  
Atmospheric Pressure ◽  
Composition Range ◽  
Isentropic Compressibility ◽  
Experimental Measurements ◽  
Kister Equation ◽  
Thermo Physical Properties

Density, refractive index, speed of sound, and viscosity have been measured of binary mixture dimethylsulfoxide (DMSO) + isopropylbenzene (CUMENE) over the whole composition range at 298.15, 303.15, 308.15, and 313.15 K and atmospheric pressure. From these experimental measurements the excess molar volume, deviations in viscosity, molar refractivity, speed of sound, and isentropic compressibility have been calculated. These deviations have been correlated by a polynomial Redlich-Kister equation to derive the coefficients and standard error. The viscosities have furthermore been correlated with two or three parameter models, that is, herric correlation and McAllister model, respectively.

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