TY  - JOUR
AU  - Grozdanić, Nikola
AU  - Najdanović-Visak, Vesna
AU  - Kijevčanin, Mirjana
AU  - Šerbanović, Slobodan P.
AU  - da Ponte, Manuel Nunes
AU  - Višak, Zoran P.
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1902
AB  - Liquid-liquid equilibria were measured for solutions containing: (1) nicotine, and one of the solvents PEG 200 or ethyl-lactate, and the ionic liquid 1-ethyl-3-methylimidazolium ethyl sulphate (ECOENG 212 (R)); (2) a (nicotine + water) mixture of close to critical composition and one of the co-solvents PEG 200, or glycerol, or ethyl-lactate; and (3) a (nicotine + water) mixture and one of the salts ECOENG 212 (R), or sodium chloride, or sodium phosphate. The objective of these measurements was to assess the possibility of using environmentally friendly solvents for extraction/separation of nicotine from its (aqueous) solutions. PEG 200, glycerol and ethyl-lactate proved to be good co-solvents of nicotine in water. On the other hand, the inorganic salts Na3PO4 and NaCl showed remarkable salting-out effects in nicotine aqueous solutions, achieved using very small quantities of these salt. The effects of the ionic liquid (molten salt) ECOENG 212 (R), were, however, much more complex. Depending on its concentration in the solvent, it exhibited either a co-solvent (salting-in) effect or an anti-solvent one. This behaviour is very interesting both from the fundamental and the applications point of view.
PB  - Elsevier, Amsterdam
T2  - Fluid Phase Equilibria
T1  - Liquid-liquid phase equilibria in nicotine (aqueous) solutions
EP  - 206
IS  - 1-2
SP  - 198
VL  - 310
DO  - 10.1016/j.fluid.2011.08.022
ER  - 

@article{
author = "Grozdanić, Nikola and Najdanović-Visak, Vesna and Kijevčanin, Mirjana and Šerbanović, Slobodan P. and da Ponte, Manuel Nunes and Višak, Zoran P.",
year = "2011",
abstract = "Liquid-liquid equilibria were measured for solutions containing: (1) nicotine, and one of the solvents PEG 200 or ethyl-lactate, and the ionic liquid 1-ethyl-3-methylimidazolium ethyl sulphate (ECOENG 212 (R)); (2) a (nicotine + water) mixture of close to critical composition and one of the co-solvents PEG 200, or glycerol, or ethyl-lactate; and (3) a (nicotine + water) mixture and one of the salts ECOENG 212 (R), or sodium chloride, or sodium phosphate. The objective of these measurements was to assess the possibility of using environmentally friendly solvents for extraction/separation of nicotine from its (aqueous) solutions. PEG 200, glycerol and ethyl-lactate proved to be good co-solvents of nicotine in water. On the other hand, the inorganic salts Na3PO4 and NaCl showed remarkable salting-out effects in nicotine aqueous solutions, achieved using very small quantities of these salt. The effects of the ionic liquid (molten salt) ECOENG 212 (R), were, however, much more complex. Depending on its concentration in the solvent, it exhibited either a co-solvent (salting-in) effect or an anti-solvent one. This behaviour is very interesting both from the fundamental and the applications point of view.",
publisher = "Elsevier, Amsterdam",
journal = "Fluid Phase Equilibria",
title = "Liquid-liquid phase equilibria in nicotine (aqueous) solutions",
pages = "206-198",
number = "1-2",
volume = "310",
doi = "10.1016/j.fluid.2011.08.022"
}

Grozdanić, N., Najdanović-Visak, V., Kijevčanin, M., Šerbanović, S. P., da Ponte, M. N.,& Višak, Z. P.. (2011). Liquid-liquid phase equilibria in nicotine (aqueous) solutions. in Fluid Phase Equilibria
Elsevier, Amsterdam., 310(1-2), 198-206.
https://doi.org/10.1016/j.fluid.2011.08.022

Grozdanić N, Najdanović-Visak V, Kijevčanin M, Šerbanović SP, da Ponte MN, Višak ZP. Liquid-liquid phase equilibria in nicotine (aqueous) solutions. in Fluid Phase Equilibria. 2011;310(1-2):198-206.
doi:10.1016/j.fluid.2011.08.022 .

Grozdanić, Nikola, Najdanović-Visak, Vesna, Kijevčanin, Mirjana, Šerbanović, Slobodan P., da Ponte, Manuel Nunes, Višak, Zoran P., "Liquid-liquid phase equilibria in nicotine (aqueous) solutions" in Fluid Phase Equilibria, 310, no. 1-2 (2011):198-206,
https://doi.org/10.1016/j.fluid.2011.08.022 . .

TY  - JOUR
AU  - Višak, Zoran P.
AU  - Ilharco, Laura M.
AU  - Garcia, Ana Rosa
AU  - Najdanović-Visak, Vesna
AU  - Fareleira, Joao M. N. A.
AU  - Caetano, Fernando J. P.
AU  - Kijevčanin, Mirjana
AU  - Šerbanović, Slobodan P.
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1887
AB  - Densities and molar excess volumes of the solutions of pyridine or nicotine in liquid polyethylene glycol, PEG200 and PEG400, have been determined at several temperatures. The experimental molar excess volumes are negative, thus indicating strong attractive interactions between the components, as could be expected considering their highly polar nature and good hydrogen bond abilities. For the pyridine systems, this negativity is slightly increased as the temperature rises, while the opposite tendency is observed for the nicotine mixtures. When pyridine and nicotine solutions are compared, the former particularly those with PEG400-exhibit substantially more negative molar excess volumes than the latter. The effect of the polymer chain length on the results for the nicotine solutions is almost negligible. However, this is not the case when pyridine is one of the components: a longer chain induced considerably higher compression on mixing. The Fourier-transform infrared analysis allowed interpretation of the negative experimental molar excess volumes in terms of specific inter- and intramolecular interactions.
PB  - Amer Chemical Soc, Washington
T2  - Journal of Physical Chemistry B
T1  - Volumetric Properties and Spectroscopic Studies of Pyridine or Nicotine Solutions in Liquid Polyethylene Glycols
EP  - 8492
IS  - 26
SP  - 8481
VL  - 115
DO  - 10.1021/jp202464h
ER  - 

@article{
author = "Višak, Zoran P. and Ilharco, Laura M. and Garcia, Ana Rosa and Najdanović-Visak, Vesna and Fareleira, Joao M. N. A. and Caetano, Fernando J. P. and Kijevčanin, Mirjana and Šerbanović, Slobodan P.",
year = "2011",
abstract = "Densities and molar excess volumes of the solutions of pyridine or nicotine in liquid polyethylene glycol, PEG200 and PEG400, have been determined at several temperatures. The experimental molar excess volumes are negative, thus indicating strong attractive interactions between the components, as could be expected considering their highly polar nature and good hydrogen bond abilities. For the pyridine systems, this negativity is slightly increased as the temperature rises, while the opposite tendency is observed for the nicotine mixtures. When pyridine and nicotine solutions are compared, the former particularly those with PEG400-exhibit substantially more negative molar excess volumes than the latter. The effect of the polymer chain length on the results for the nicotine solutions is almost negligible. However, this is not the case when pyridine is one of the components: a longer chain induced considerably higher compression on mixing. The Fourier-transform infrared analysis allowed interpretation of the negative experimental molar excess volumes in terms of specific inter- and intramolecular interactions.",
publisher = "Amer Chemical Soc, Washington",
journal = "Journal of Physical Chemistry B",
title = "Volumetric Properties and Spectroscopic Studies of Pyridine or Nicotine Solutions in Liquid Polyethylene Glycols",
pages = "8492-8481",
number = "26",
volume = "115",
doi = "10.1021/jp202464h"
}

Višak, Z. P., Ilharco, L. M., Garcia, A. R., Najdanović-Visak, V., Fareleira, J. M. N. A., Caetano, F. J. P., Kijevčanin, M.,& Šerbanović, S. P.. (2011). Volumetric Properties and Spectroscopic Studies of Pyridine or Nicotine Solutions in Liquid Polyethylene Glycols. in Journal of Physical Chemistry B
Amer Chemical Soc, Washington., 115(26), 8481-8492.
https://doi.org/10.1021/jp202464h

Višak ZP, Ilharco LM, Garcia AR, Najdanović-Visak V, Fareleira JMNA, Caetano FJP, Kijevčanin M, Šerbanović SP. Volumetric Properties and Spectroscopic Studies of Pyridine or Nicotine Solutions in Liquid Polyethylene Glycols. in Journal of Physical Chemistry B. 2011;115(26):8481-8492.
doi:10.1021/jp202464h .

Višak, Zoran P., Ilharco, Laura M., Garcia, Ana Rosa, Najdanović-Visak, Vesna, Fareleira, Joao M. N. A., Caetano, Fernando J. P., Kijevčanin, Mirjana, Šerbanović, Slobodan P., "Volumetric Properties and Spectroscopic Studies of Pyridine or Nicotine Solutions in Liquid Polyethylene Glycols" in Journal of Physical Chemistry B, 115, no. 26 (2011):8481-8492,
https://doi.org/10.1021/jp202464h . .