scholarly journals Optical Properties, Excess Volume Prediction from Refractive Index and Intermolecular Interactions in Dibutylamine + Isomeric Butanol

2021 ◽  
Vol 33 (6) ◽  
pp. 1287-1293
Author(s):  
Kavitha Kumari ◽  
Sanjeev Maken
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Standard Deviation ◽  
Molar Volume ◽  
Binary Mixtures ◽  
Co2 Capture ◽  
Thermophysical Properties ◽  
Excess Molar Volume ◽  
Excess Volume ◽  
Refractive Index Data

The alkyl or alkanol amines are widely used as absorbent for CO2 capture owing to interaction between amines and CO2. In order to increase the CO2 loading in amine based absorbents, blending of amine with alkanol may be one option. As thermophysical properties of of utmost importance in designing, in present work, the refractive index of dibutylamine (DBA) and isomeric butanol as well as their binary mixtures at 298.15 K to 308.15 K were measured. The Δn are found positive for DBA + isomeric butanol mixtures. The Δn values were correlated with Redlich-Kister polynomial. The refractive index data were also predicted by various correlations and results were expressed in terms of standard deviation. The Δn values were also employed to calculate the excess molar volume of the present binary mixtures. Further Δn data analysed in terms of intermolecular interaction among DBA (1) + isomeric butanol (2) mixtures.

scholarly journals Thermophysical properties of biofuel components derived from biomass

2016 ◽  
Author(s):  
◽  
Mbalenhle B. Nduli
Keyword(s):  
Refractive Index ◽  
Molar Volume ◽  
Binary Mixtures ◽  
Thermophysical Properties ◽  
Excess Molar Volume ◽  
Excess Molar Volumes ◽  
Isentropic Compressibility ◽  
Lorenz Equation ◽  
Molar Volumes ◽  
Increasing Temperature

The thermophysical properties of the binary mixtures containing biofuel components derived from biomass were determined. Experimental densities, speed of sound, and refractive indices for the binary mixtures (methanol or 1-ethyl-3-methylimidazolium acetate [EMIM][OAc] + furfural or furfuryl alcohol ) were measured at T = (298.15, 303.15, 308.15, 313.15 and 318.15) K. From the experimental data, excess molar volume, E m V , isentropic compressibility, s  , molar refractions, R, and deviation in refractive index, Δn, were calculated. The excess molar volumes were found to be negative for all systems studied. The isentropic compressibility were found to be both positive for the whole composition and temperature range and increases slightly with increasing temperature. The deviation in refractive index was positive over the whole composition range. The obtained values of excess molar volumes and changes of refractive index on mixing were satisfactorily correlated by the Redlich–Kister equation. The Lorentz–Lorenz equation was applied to predict the density and calculate the excess molar volume of the binary mixtures.

Temperature and composition dependence of the density, viscosity and refractive index of binary mixtures of a novel gemini ionic liquid with acetonitrile

RSC Advances ◽  
2016 ◽  
Vol 6 (35) ◽  
pp. 29172-29181 ◽  
Author(s):  
Xuzhao Yang ◽  
Hao Song ◽  
Jun Wang ◽  
Wenyuan Zou
Keyword(s):  
Refractive Index ◽  
Ionic Liquid ◽  
Molar Volume ◽  
Binary Mixtures ◽  
Excess Molar Volume ◽  
Composition Dependence

Excess molar volume VEm for the system of [MPiC6Py][NTf2]2 (1) + MeCN (2) at various temperatures; solid line, Redlich–Kister correlation.

scholarly journals Prediction of excess molar volumes of selected binary mixtures from refractive index data

2014 ◽  
Vol 79 (6) ◽  
pp. 707-718 ◽  
Author(s):  
Jelena Vuksanovic ◽  
Divna Bajic ◽  
Gorica Ivanis ◽  
Emila Zivkovic ◽  
Ivona Radovic ◽  
...  
Keyword(s):  
Refractive Index ◽  
Binary Mixtures ◽  
Excess Molar Volumes ◽  
Mixing Rules ◽  
Mixing Rule ◽  
Molar Volumes ◽  
Index Data ◽  
Peg 400 ◽  
Benzene Toluene ◽  
Refractive Index Data

The excess molar volumes of twenty two binary mixtures containing various groups of organic compounds: alcohols (ethanol, 1-propanol, 1,2-propanediol, 1,3-propanediol and glycerol), ketone (acetone), ester (butyl lactate), lactam (N-methyl-2-pyrrolidone), PEGs (PEG 200, PEG 400) and aromatics (benzene, toluene and pyridine) were predicted from the refractive index data, using three types of equations coupled with several mixing rules for refractive index calculations: the Lorentz-Lorenz, Dale-Gladstone, Eykman, Arago-Biot, Newton, and Oster. The obtained results were analysed in terms of the applied equation and mixing rule and the nature of interactions between the mixtures? components.

Applicability of cubic equation of state mixing rules on correlation of excess molar volume of Non-Electrolyte binary mixtures

2004 ◽  
Vol 42 (2) ◽  
pp. 147-158 ◽  
Author(s):  
Mirjana Lj. Kijevčanin ◽  
Bojan D. Djordjević ◽  
Slobodan P. Šerbanović ◽  
Ivona R. Grgurić ◽  
Aleksandar Ž Tasić
Keyword(s):  
Equation Of State ◽  
Molar Volume ◽  
Binary Mixtures ◽  
Excess Molar Volume ◽  
Mixing Rules ◽  
Cubic Equation Of State ◽  
Cubic Equation ◽  
State Mixing

Excess Molar Volume along with Viscosity and Refractive Index for Binary Systems of Tricyclo[5.2.1.02.6]decane with Five Cycloalkanes

2013 ◽  
Vol 58 (11) ◽  
pp. 3078-3086 ◽  
Author(s):  
Guangqian Li ◽  
Hai Chi ◽  
Yongsheng Guo ◽  
Wenjun Fang ◽  
Shenlin Hu
Keyword(s):  
Refractive Index ◽  
Molar Volume ◽  
Excess Molar Volume ◽  
Binary Systems
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