TY  - JOUR
AU  - Grozdanić, Nikola
AU  - Calado, Marta S.
AU  - Kijevčanin, Mirjana
AU  - Šerbanović, Slobodan P.
AU  - Višak, Zoran P.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2807
AB  - This work is a continuation of previous studies on phase demixing - salting-out effects in aqueous nicotine solutions. Thus, pH measurements were performed, allowing a brief analysis of the existing hydrogen bond interactions. Salting-out effects the related experimental cloud point shifts provoked by the addition of two inorganic salts, potassium nitrate and sodium sulfate, which have not hitherto been studied, were determined. Analysis of the current and previously reported salting-out/or salting-in phenomena in nicotine aqueous solutions was performed. In this respect, five studied salts were included: four inorganic salts (sodium chloride, potassium nitrate, sodium sulfate and trisodium phosphate (Na3PO4)), and ionic the liquid 1-ethyl-3-methylimidazolium ethyl sulfate ([C(2)mim][EtSO4], commercial name ECOENG212 (R)). Based on pH measurements, the effective Gibbs energies of hydration and the ionic strengths of the respective ternary solutions were calculated and plotted against the related cloud-point shifts caused by the addition of the salts. For the studied salts, the results and diagram obtained within this work may be used to predict the cloud-points shifts, based on the related quantities of the salts added and/or the molar Gibbs energies of hydration and/or ionic strengths requested in each case.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Aqueous nicotine solutions: pH-measurements and salting-out effects - Analysis of the effective Gibbs energies of hydration and ionic strengths of the solutions
EP  - 842
IS  - 7
SP  - 829
VL  - 79
DO  - 10.2298/JSC130817109G
ER  - 

@article{
author = "Grozdanić, Nikola and Calado, Marta S. and Kijevčanin, Mirjana and Šerbanović, Slobodan P. and Višak, Zoran P.",
year = "2014",
abstract = "This work is a continuation of previous studies on phase demixing - salting-out effects in aqueous nicotine solutions. Thus, pH measurements were performed, allowing a brief analysis of the existing hydrogen bond interactions. Salting-out effects the related experimental cloud point shifts provoked by the addition of two inorganic salts, potassium nitrate and sodium sulfate, which have not hitherto been studied, were determined. Analysis of the current and previously reported salting-out/or salting-in phenomena in nicotine aqueous solutions was performed. In this respect, five studied salts were included: four inorganic salts (sodium chloride, potassium nitrate, sodium sulfate and trisodium phosphate (Na3PO4)), and ionic the liquid 1-ethyl-3-methylimidazolium ethyl sulfate ([C(2)mim][EtSO4], commercial name ECOENG212 (R)). Based on pH measurements, the effective Gibbs energies of hydration and the ionic strengths of the respective ternary solutions were calculated and plotted against the related cloud-point shifts caused by the addition of the salts. For the studied salts, the results and diagram obtained within this work may be used to predict the cloud-points shifts, based on the related quantities of the salts added and/or the molar Gibbs energies of hydration and/or ionic strengths requested in each case.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Aqueous nicotine solutions: pH-measurements and salting-out effects - Analysis of the effective Gibbs energies of hydration and ionic strengths of the solutions",
pages = "842-829",
number = "7",
volume = "79",
doi = "10.2298/JSC130817109G"
}

Grozdanić, N., Calado, M. S., Kijevčanin, M., Šerbanović, S. P.,& Višak, Z. P.. (2014). Aqueous nicotine solutions: pH-measurements and salting-out effects - Analysis of the effective Gibbs energies of hydration and ionic strengths of the solutions. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 79(7), 829-842.
https://doi.org/10.2298/JSC130817109G

Grozdanić N, Calado MS, Kijevčanin M, Šerbanović SP, Višak ZP. Aqueous nicotine solutions: pH-measurements and salting-out effects - Analysis of the effective Gibbs energies of hydration and ionic strengths of the solutions. in Journal of the Serbian Chemical Society. 2014;79(7):829-842.
doi:10.2298/JSC130817109G .

Grozdanić, Nikola, Calado, Marta S., Kijevčanin, Mirjana, Šerbanović, Slobodan P., Višak, Zoran P., "Aqueous nicotine solutions: pH-measurements and salting-out effects - Analysis of the effective Gibbs energies of hydration and ionic strengths of the solutions" in Journal of the Serbian Chemical Society, 79, no. 7 (2014):829-842,
https://doi.org/10.2298/JSC130817109G . .

TY  - JOUR
AU  - Majstorović, Divna
AU  - Jovanović, Jovan
AU  - Živković, Emila
AU  - Višak, Zoran P.
AU  - Šerbanović, Slobodan P.
AU  - Kijevčanin, Mirjana
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2492
AB  - Viscosities of four binary mixtures: pyridine + PEG200, pyridine + PEG400, nicotine + PEG200 and nicotine + PEG400 have been measured in temperature range 288.15-333.15 K with temperature step of 5 K and at the atmospheric pressure. Viscosity deviations and excess molar Gibbs energies of activation of viscous flow for the selected binary systems were calculated from the experimental data and fitted to the Redlich-Kister polynomial equation. In addition, UNIFAC-VISCO and ASOG-VISCO models were used to predict the dynamic viscosities of the investigated binary mixtures. The experimental values of viscosity for the investigated four binary systems were used to determine the new interaction parameters for their application in UNIFAC-VISCO and ASOG-VISCO models. The viscosity data have also been correlated by two parameters Teja-Rice and three and four parameters McAllister models.
PB  - Elsevier Science Bv, Amsterdam
T2  - Fluid Phase Equilibria
T1  - Experimental measurement and modelling of viscosity of the binary systems pyridine or nicotine with polyethylene glycols at T = (288.15-333.15) K. New UNIFAC-VISCO and ASOG-VISCO interaction parameters
EP  - 293
SP  - 282
VL  - 338
DO  - 10.1016/j.fluid.2012.11.021
ER  - 

@article{
author = "Majstorović, Divna and Jovanović, Jovan and Živković, Emila and Višak, Zoran P. and Šerbanović, Slobodan P. and Kijevčanin, Mirjana",
year = "2013",
abstract = "Viscosities of four binary mixtures: pyridine + PEG200, pyridine + PEG400, nicotine + PEG200 and nicotine + PEG400 have been measured in temperature range 288.15-333.15 K with temperature step of 5 K and at the atmospheric pressure. Viscosity deviations and excess molar Gibbs energies of activation of viscous flow for the selected binary systems were calculated from the experimental data and fitted to the Redlich-Kister polynomial equation. In addition, UNIFAC-VISCO and ASOG-VISCO models were used to predict the dynamic viscosities of the investigated binary mixtures. The experimental values of viscosity for the investigated four binary systems were used to determine the new interaction parameters for their application in UNIFAC-VISCO and ASOG-VISCO models. The viscosity data have also been correlated by two parameters Teja-Rice and three and four parameters McAllister models.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Fluid Phase Equilibria",
title = "Experimental measurement and modelling of viscosity of the binary systems pyridine or nicotine with polyethylene glycols at T = (288.15-333.15) K. New UNIFAC-VISCO and ASOG-VISCO interaction parameters",
pages = "293-282",
volume = "338",
doi = "10.1016/j.fluid.2012.11.021"
}

Majstorović, D., Jovanović, J., Živković, E., Višak, Z. P., Šerbanović, S. P.,& Kijevčanin, M.. (2013). Experimental measurement and modelling of viscosity of the binary systems pyridine or nicotine with polyethylene glycols at T = (288.15-333.15) K. New UNIFAC-VISCO and ASOG-VISCO interaction parameters. in Fluid Phase Equilibria
Elsevier Science Bv, Amsterdam., 338, 282-293.
https://doi.org/10.1016/j.fluid.2012.11.021

Majstorović D, Jovanović J, Živković E, Višak ZP, Šerbanović SP, Kijevčanin M. Experimental measurement and modelling of viscosity of the binary systems pyridine or nicotine with polyethylene glycols at T = (288.15-333.15) K. New UNIFAC-VISCO and ASOG-VISCO interaction parameters. in Fluid Phase Equilibria. 2013;338:282-293.
doi:10.1016/j.fluid.2012.11.021 .

Majstorović, Divna, Jovanović, Jovan, Živković, Emila, Višak, Zoran P., Šerbanović, Slobodan P., Kijevčanin, Mirjana, "Experimental measurement and modelling of viscosity of the binary systems pyridine or nicotine with polyethylene glycols at T = (288.15-333.15) K. New UNIFAC-VISCO and ASOG-VISCO interaction parameters" in Fluid Phase Equilibria, 338 (2013):282-293,
https://doi.org/10.1016/j.fluid.2012.11.021 . .

TY  - JOUR
AU  - Calado, Marta S.
AU  - Ivaniš, Gorica
AU  - Vuksanović, Jelena
AU  - Kijevčanin, Mirjana
AU  - Šerbanović, Slobodan P.
AU  - Višak, Zoran P.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2536
AB  - Liquid-liquid and solid-liquid phase behaviors of the binary solutions of imidazolium [C(2)mim](+) or trihexyltetradecyl phosphonium [P-6,P-6,P-6,P-14](+) ionic liquids having triflate [OTf](-), bistriflamide [NTf2](-) or ethyl-sulfate [EtSO4](-) anions with poly(ethylene glycol) (PEG) of average molecular mass (Mw) 200, 400 and 2050, were studied. The respective temperature-composition phase diagrams were constructed thus mapping the homogeneous and heterogeneous regions of the studied solutions. The impact of cation, anion and of PEG polymer chain length on the studied phase behavior was investigated and discussed in the terms of the important interactions in the solutions - hydrogen bonds and ion-dipole interactions. Imidazolium cation showed significant advantage over the phosphonium in promoting both liquid-liquid and solid-liquid solubility. On the other hand, the anion effect was found to be dependent on the outcome of the interplay between cation-anion and anion-PEG interactions. As expected, longer PEG chain led to worse solubility with the studied ionic liquids. This study is a first step to explore the possibilities to use the studied (PEG + ionic liquid) solutions as potential sustainable hybrid materials or combined (mixed) solvents of tunable thermophysical properties and/or solvent power.
PB  - Elsevier Science Bv, Amsterdam
T2  - Fluid Phase Equilibria
T1  - "Green Meets Green" - Sustainable solutions of imidazolium and phosphonium ionic liquids with poly(ethylene glycol): Solubility and phase behavior
EP  - 12
SP  - 6
VL  - 344
DO  - 10.1016/j.fluid.2013.01.019
ER  - 

@article{
author = "Calado, Marta S. and Ivaniš, Gorica and Vuksanović, Jelena and Kijevčanin, Mirjana and Šerbanović, Slobodan P. and Višak, Zoran P.",
year = "2013",
abstract = "Liquid-liquid and solid-liquid phase behaviors of the binary solutions of imidazolium [C(2)mim](+) or trihexyltetradecyl phosphonium [P-6,P-6,P-6,P-14](+) ionic liquids having triflate [OTf](-), bistriflamide [NTf2](-) or ethyl-sulfate [EtSO4](-) anions with poly(ethylene glycol) (PEG) of average molecular mass (Mw) 200, 400 and 2050, were studied. The respective temperature-composition phase diagrams were constructed thus mapping the homogeneous and heterogeneous regions of the studied solutions. The impact of cation, anion and of PEG polymer chain length on the studied phase behavior was investigated and discussed in the terms of the important interactions in the solutions - hydrogen bonds and ion-dipole interactions. Imidazolium cation showed significant advantage over the phosphonium in promoting both liquid-liquid and solid-liquid solubility. On the other hand, the anion effect was found to be dependent on the outcome of the interplay between cation-anion and anion-PEG interactions. As expected, longer PEG chain led to worse solubility with the studied ionic liquids. This study is a first step to explore the possibilities to use the studied (PEG + ionic liquid) solutions as potential sustainable hybrid materials or combined (mixed) solvents of tunable thermophysical properties and/or solvent power.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Fluid Phase Equilibria",
title = ""Green Meets Green" - Sustainable solutions of imidazolium and phosphonium ionic liquids with poly(ethylene glycol): Solubility and phase behavior",
pages = "12-6",
volume = "344",
doi = "10.1016/j.fluid.2013.01.019"
}

Calado, M. S., Ivaniš, G., Vuksanović, J., Kijevčanin, M., Šerbanović, S. P.,& Višak, Z. P.. (2013). "Green Meets Green" - Sustainable solutions of imidazolium and phosphonium ionic liquids with poly(ethylene glycol): Solubility and phase behavior. in Fluid Phase Equilibria
Elsevier Science Bv, Amsterdam., 344, 6-12.
https://doi.org/10.1016/j.fluid.2013.01.019

Calado MS, Ivaniš G, Vuksanović J, Kijevčanin M, Šerbanović SP, Višak ZP. "Green Meets Green" - Sustainable solutions of imidazolium and phosphonium ionic liquids with poly(ethylene glycol): Solubility and phase behavior. in Fluid Phase Equilibria. 2013;344:6-12.
doi:10.1016/j.fluid.2013.01.019 .

Calado, Marta S., Ivaniš, Gorica, Vuksanović, Jelena, Kijevčanin, Mirjana, Šerbanović, Slobodan P., Višak, Zoran P., ""Green Meets Green" - Sustainable solutions of imidazolium and phosphonium ionic liquids with poly(ethylene glycol): Solubility and phase behavior" in Fluid Phase Equilibria, 344 (2013):6-12,
https://doi.org/10.1016/j.fluid.2013.01.019 . .