TY  - JOUR
AU  - Zarić, Milana M.
AU  - Vraneš, Milan
AU  - Bikić, Siniša
AU  - Tot, Aleksandar
AU  - Papović, Snežana
AU  - Borović, Teona Teodora
AU  - Kijevčanin, Mirjana Lj.
AU  - Radović, Ivona R.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5246
AB  - Ethylene glycol is recognized as a heat transfer fluid. To improve its performance, caffeine is added to pure ethylene glycol. The experimental measurements of densities at pressures of up to 60 MPa and in the range of temperatures 293.15-413.15 K were performed. Obtained experimental results were fitted by the modified Tammann-Tait equation, and parameters were used to determine some valuable thermodynamic and mechanical properties, the isothermal compressibility, the isobaric thermal expansibility, the internal pressure, and the difference of specific heat capacity at constant pressure and constant volume. The same approach was applied to the equimolar mixture of ethylene glycol and water. The results confirm negligible changes in the investigated thermodynamic properties with the addition of caffeine into pure ethylene glycol and significantly smaller dependence on temperature compared to the mixture of ethylene glycol and water.
PB  - American Chemical Society
T2  - Journal of Chemical and Engineering Data
T1  - Thermodynamic Properties of Caffeine in Ethylene Glycol at High Pressures and High Temperatures
DO  - 10.1021/acs.jced.2c00401
ER  - 

@article{
author = "Zarić, Milana M. and Vraneš, Milan and Bikić, Siniša and Tot, Aleksandar and Papović, Snežana and Borović, Teona Teodora and Kijevčanin, Mirjana Lj. and Radović, Ivona R.",
year = "2022",
abstract = "Ethylene glycol is recognized as a heat transfer fluid. To improve its performance, caffeine is added to pure ethylene glycol. The experimental measurements of densities at pressures of up to 60 MPa and in the range of temperatures 293.15-413.15 K were performed. Obtained experimental results were fitted by the modified Tammann-Tait equation, and parameters were used to determine some valuable thermodynamic and mechanical properties, the isothermal compressibility, the isobaric thermal expansibility, the internal pressure, and the difference of specific heat capacity at constant pressure and constant volume. The same approach was applied to the equimolar mixture of ethylene glycol and water. The results confirm negligible changes in the investigated thermodynamic properties with the addition of caffeine into pure ethylene glycol and significantly smaller dependence on temperature compared to the mixture of ethylene glycol and water.",
publisher = "American Chemical Society",
journal = "Journal of Chemical and Engineering Data",
title = "Thermodynamic Properties of Caffeine in Ethylene Glycol at High Pressures and High Temperatures",
doi = "10.1021/acs.jced.2c00401"
}

Zarić, M. M., Vraneš, M., Bikić, S., Tot, A., Papović, S., Borović, T. T., Kijevčanin, M. Lj.,& Radović, I. R.. (2022). Thermodynamic Properties of Caffeine in Ethylene Glycol at High Pressures and High Temperatures. in Journal of Chemical and Engineering Data
American Chemical Society..
https://doi.org/10.1021/acs.jced.2c00401

Zarić MM, Vraneš M, Bikić S, Tot A, Papović S, Borović TT, Kijevčanin ML, Radović IR. Thermodynamic Properties of Caffeine in Ethylene Glycol at High Pressures and High Temperatures. in Journal of Chemical and Engineering Data. 2022;.
doi:10.1021/acs.jced.2c00401 .

Zarić, Milana M., Vraneš, Milan, Bikić, Siniša, Tot, Aleksandar, Papović, Snežana, Borović, Teona Teodora, Kijevčanin, Mirjana Lj., Radović, Ivona R., "Thermodynamic Properties of Caffeine in Ethylene Glycol at High Pressures and High Temperatures" in Journal of Chemical and Engineering Data (2022),
https://doi.org/10.1021/acs.jced.2c00401 . .

TY  - JOUR
AU  - Vranes, Milan
AU  - Radović, Ivona
AU  - Bikic, Sinisa
AU  - Tot, Aleksandar
AU  - Kijevčanin, Mirjana
AU  - Zarić, Danica
AU  - Borovic, Teona Teodora
AU  - Papovic, Snezana
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4930
AB  - In this article, detailed physicochemical characterization of ethylene glycol and caffeine + ethylene glycol mixtures is performed based on density, viscosity and refractive indices measurements in temperature range from (288.15 to 343.15) K. The apparent molar volume (V-phi) arent molar volume at infinite dilution (V-phi(o)), Masson's experimental slope (S-nu), limiting apparent molar expansibility, (E-phi(o)), viscosity B-coefficient, thermodynamical parameters of viscous flow and molar refractions (R-m) have been evaluated from experimental measurements and results are additionally proven by molecular dynamic simulations. The addition of caffeine reduces viscosity of ethylene glycol, while caffeine molecules have high tendency to form self-aggregates due to weak interactions with ethylene glycol. Compared to aqueous solution of caffeine, caffeine + ethylene glycol mixtures are characterized with significantly lower solvation number and with more pronounced caffeine self-aggregation.
T2  - Journal of Molecular Liquids
T1  - Improving ethylene glycol transport properties by caffeine - Thermodynamic and computational evidence
VL  - 333
DO  - 10.1016/j.molliq.2021.115918
ER  - 

@article{
author = "Vranes, Milan and Radović, Ivona and Bikic, Sinisa and Tot, Aleksandar and Kijevčanin, Mirjana and Zarić, Danica and Borovic, Teona Teodora and Papovic, Snezana",
year = "2021",
abstract = "In this article, detailed physicochemical characterization of ethylene glycol and caffeine + ethylene glycol mixtures is performed based on density, viscosity and refractive indices measurements in temperature range from (288.15 to 343.15) K. The apparent molar volume (V-phi) arent molar volume at infinite dilution (V-phi(o)), Masson's experimental slope (S-nu), limiting apparent molar expansibility, (E-phi(o)), viscosity B-coefficient, thermodynamical parameters of viscous flow and molar refractions (R-m) have been evaluated from experimental measurements and results are additionally proven by molecular dynamic simulations. The addition of caffeine reduces viscosity of ethylene glycol, while caffeine molecules have high tendency to form self-aggregates due to weak interactions with ethylene glycol. Compared to aqueous solution of caffeine, caffeine + ethylene glycol mixtures are characterized with significantly lower solvation number and with more pronounced caffeine self-aggregation.",
journal = "Journal of Molecular Liquids",
title = "Improving ethylene glycol transport properties by caffeine - Thermodynamic and computational evidence",
volume = "333",
doi = "10.1016/j.molliq.2021.115918"
}

Vranes, M., Radović, I., Bikic, S., Tot, A., Kijevčanin, M., Zarić, D., Borovic, T. T.,& Papovic, S.. (2021). Improving ethylene glycol transport properties by caffeine - Thermodynamic and computational evidence. in Journal of Molecular Liquids, 333.
https://doi.org/10.1016/j.molliq.2021.115918

Vranes M, Radović I, Bikic S, Tot A, Kijevčanin M, Zarić D, Borovic TT, Papovic S. Improving ethylene glycol transport properties by caffeine - Thermodynamic and computational evidence. in Journal of Molecular Liquids. 2021;333.
doi:10.1016/j.molliq.2021.115918 .

Vranes, Milan, Radović, Ivona, Bikic, Sinisa, Tot, Aleksandar, Kijevčanin, Mirjana, Zarić, Danica, Borovic, Teona Teodora, Papovic, Snezana, "Improving ethylene glycol transport properties by caffeine - Thermodynamic and computational evidence" in Journal of Molecular Liquids, 333 (2021),
https://doi.org/10.1016/j.molliq.2021.115918 . .