scholarly journals Predicting Density and Refractive Index of Ionic Liquids

10.5772/65790 ◽  
2017 ◽  
Author(s):  
Mercedes G. Montalbán ◽  
Mar Collado-González ◽  
F. Guillermo Díaz-Baños ◽  
Gloria Víllora
Keyword(s):  
Refractive Index ◽  
Ionic Liquids

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

scholarly journals Thermophysical Properties of Newly Synthesized Ammonium-Based Protic Ionic Liquids: Effect of Temperature, Anion and Alkyl Chain Length

Processes ◽  
2020 ◽  
Vol 8 (6) ◽  
pp. 742
Author(s):  
Nur Hidayah Zulaikha Othman Zailani ◽  
Normawati M. Yunus ◽  
Asyraf Hanim Ab Rahim ◽  
Mohamad Azmi Bustam
Keyword(s):  
Refractive Index ◽  
Ionic Liquids ◽  
Melting Point ◽  
Thermophysical Properties ◽  
Dynamic Viscosity ◽  
Alkyl Chain ◽  
Molecular Volume ◽  
Standard Entropy ◽  
Protic Ionic Liquids ◽  
Density Dynamic

Ionic liquids which are often classified as low melting point salts have received significant attention from research groups and industries to be used in a wide range of applications. Many of these applications require thorough knowledge on the thermophysical properties of the ionic liquids before utilizing their full potentials in various fields. In this work, a series of alkylammonium cation and carboxylate anion-based room temperature protic ionic liquids (PILs) were synthesized by varying length of alkyl chain of the cation from diethyl to dibutyl combined with pentanoate, hexanoate and heptanoate anions. These ammonium-based PILs named as diethylammonium pentanoate [DEA][C5], diethylammonium hexanoate [DEA][C6], diethylammonium heptanoate [DEA][C7], dibutylammonium pentanoate [DBA][C5], dibutylammonium hexanoate [DBA][C6] and dibutylammonium heptanoate [DBA][C7] were characterized using Nuclear Magnetic Resonance (NMR) spectroscopy. The thermophysical properties of the PILs namely density, dynamic viscosity and refractive index were measured and analyzed. Density, ρ and dynamic viscosity, η were determined at T = (293.15 to 363.15) K and refractive index, nD was measured at T = (293.15 to 333.15) K. The fitting parameters are proposed for the empirical correlations of density, dynamic viscosity and refractive index. The values of thermal expansion coefficient, αp, molecular volume, Vm, standard entropy, S° and lattice potential energy, Upot also have been calculated by using the specified equations. The thermal decomposition temperature, Td was also determined using a thermogravimetric analyzer (TGA) while the differential scanning calorimetry (DSC) technique provided the glass transition, Tg, melting point, Tm and crystallization, Tc temperatures of the PILs. The experimental results revealed that the dependency of the experimental values namely the ρ, η, nD, and Td on the alkyl chain of the anion, size of the cations and the temperature of measurement.

Density, refractive index, and viscosity of binary systems composed of ionic liquids ([Cnmim]Cl, n = 2, 4) and three dipolar aprotic solvents at T = 288.15–318.15 K

2015 ◽  
Vol 69 (10) ◽  
Author(s):  
Lu Bai ◽  
Shu-Ni Li ◽  
Quan-Guo Zhai ◽  
Yu-Cheng Jiang ◽  
Man-Cheng Hu
Keyword(s):  
Refractive Index ◽  
Ionic Liquids ◽  
Thermophysical Properties ◽  
Binary Systems ◽  
Aprotic Solvents ◽  
Dipolar Aprotic Solvents

AbstractThermophysical properties, such as density (ρ), refractive index (n

Comprehensive Refractive Index Property for Room-Temperature Ionic Liquids

2012 ◽  
Vol 57 (8) ◽  
pp. 2211-2216 ◽  
Author(s):  
Shiro Seki ◽  
Seiji Tsuzuki ◽  
Kikuko Hayamizu ◽  
Yasuhiro Umebayashi ◽  
Nobuyuki Serizawa ◽  
...  
Keyword(s):  
Refractive Index ◽  
Ionic Liquids ◽  
Room Temperature ◽  
Room Temperature Ionic Liquids

Predicting refractive index dispersion of ionic liquids

2019 ◽  
Author(s):  
Carlos Damián Rodríguez Fernández ◽  
Yago Arosa ◽  
Bilal S. Algnamat ◽  
Elena-López Lago ◽  
Luis M. Varela ◽  
...  
Keyword(s):  
Refractive Index ◽  
Ionic Liquids ◽  
Refractive Index Dispersion

Refractive index measurement of imidazolium based ionic liquids in the Vis-NIR

2017 ◽  
Vol 73 ◽  
pp. 647-657 ◽  
Author(s):  
Yago Arosa ◽  
Carlos Damián Rodríguez Fernández ◽  
Elena López Lago ◽  
Alfredo Amigo ◽  
Luis Miguel Varela ◽  
...  
Keyword(s):  
Refractive Index ◽  
Ionic Liquids ◽  
Refractive Index Measurement ◽  
Index Measurement

Prediction of refractive index of binary solutions consisting of ionic liquids and alcohols (methanol or ethanol or 1-propanol) using artificial neural network

2016 ◽  
Vol 65 ◽  
pp. 83-90 ◽  
Author(s):  
Allan N. Soriano ◽  
Karen Faith P. Ornedo-Ramos ◽  
Carla Angela M. Muriel ◽  
Adonis P. Adornado ◽  
Vergel C. Bungay ◽  
...  
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Refractive Index ◽  
Ionic Liquids ◽  
Binary Solutions ◽  
Artificial Neural
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