TY  - JOUR
AU  - Ivanović, Tijana
AU  - Popović, Daniela
AU  - Miladinović, Jelena
AU  - Rard, Joseph A.
AU  - Miladinović, Zoran P.
AU  - Belošević, Svetlana
AU  - Trivunac, Katarina
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4174
AB  - Isopiestic measurements have been made for aqueous mixtures of NaH2PO4 and KH2PO4 at T=(298.15 +/- 0.01) K, at NaH2PO4 ionic strength fractions y=(0, 0.19108, 0.38306, 0.58192, and 1), assuming that both electrolytes dissociate as 1:1 electrolytes, using KCl(aq) as the reference standard solution. Model parameters for an extended form of Pitzer's ion-interaction model and also for the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale were evaluated at T=298.15K for NaH2PO4(aq) using the present isopiestic results (13 values), as were those for KH2PO4(aq) using the present isopiestic results (12 values), together with numerous critically-assessed osmotic coefficients for both electrolytes taken from the published literature. The thermodynamic models for KH2PO4(aq) extend to m=2.187molkg(-1), which is slightly above saturation, while those for NaH2PO4(aq) extend to m=7.5molkg(-1), which is below saturation. The 39 osmotic coefficients for the ternary mixtures from the present study along with 42 values from a published study were likewise represented with these models, with both the usual Pitzer mixing terms and also Scatchard's neutral-electrolyte model mixing terms being used for the extended ion-interaction model. Two mixing parameters were needed for each of the models, and all three models gave similar quality representations of the experimental results. Maximum differences in calculated values of mean molality-based activity coefficients for these three models are (+/-)(NaH2PO4)0.0080 and (+/-)(KH2PO4)0.0043. The experimental results were also found to nearly conform to Zdanovskii's rule.
PB  - Springer/Plenum Publishers, New York
T2  - Journal of Solution Chemistry
T1  - Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH(2)PO(4)+(1-y)KH2PO4}(aq) System at T=298.15K
EP  - 328
IS  - 3
SP  - 296
VL  - 48
DO  - 10.1007/s10953-018-0839-4
ER  - 

@article{
author = "Ivanović, Tijana and Popović, Daniela and Miladinović, Jelena and Rard, Joseph A. and Miladinović, Zoran P. and Belošević, Svetlana and Trivunac, Katarina",
year = "2019",
abstract = "Isopiestic measurements have been made for aqueous mixtures of NaH2PO4 and KH2PO4 at T=(298.15 +/- 0.01) K, at NaH2PO4 ionic strength fractions y=(0, 0.19108, 0.38306, 0.58192, and 1), assuming that both electrolytes dissociate as 1:1 electrolytes, using KCl(aq) as the reference standard solution. Model parameters for an extended form of Pitzer's ion-interaction model and also for the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale were evaluated at T=298.15K for NaH2PO4(aq) using the present isopiestic results (13 values), as were those for KH2PO4(aq) using the present isopiestic results (12 values), together with numerous critically-assessed osmotic coefficients for both electrolytes taken from the published literature. The thermodynamic models for KH2PO4(aq) extend to m=2.187molkg(-1), which is slightly above saturation, while those for NaH2PO4(aq) extend to m=7.5molkg(-1), which is below saturation. The 39 osmotic coefficients for the ternary mixtures from the present study along with 42 values from a published study were likewise represented with these models, with both the usual Pitzer mixing terms and also Scatchard's neutral-electrolyte model mixing terms being used for the extended ion-interaction model. Two mixing parameters were needed for each of the models, and all three models gave similar quality representations of the experimental results. Maximum differences in calculated values of mean molality-based activity coefficients for these three models are (+/-)(NaH2PO4)0.0080 and (+/-)(KH2PO4)0.0043. The experimental results were also found to nearly conform to Zdanovskii's rule.",
publisher = "Springer/Plenum Publishers, New York",
journal = "Journal of Solution Chemistry",
title = "Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH(2)PO(4)+(1-y)KH2PO4}(aq) System at T=298.15K",
pages = "328-296",
number = "3",
volume = "48",
doi = "10.1007/s10953-018-0839-4"
}

Ivanović, T., Popović, D., Miladinović, J., Rard, J. A., Miladinović, Z. P., Belošević, S.,& Trivunac, K.. (2019). Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH(2)PO(4)+(1-y)KH2PO4}(aq) System at T=298.15K. in Journal of Solution Chemistry
Springer/Plenum Publishers, New York., 48(3), 296-328.
https://doi.org/10.1007/s10953-018-0839-4

Ivanović T, Popović D, Miladinović J, Rard JA, Miladinović ZP, Belošević S, Trivunac K. Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH(2)PO(4)+(1-y)KH2PO4}(aq) System at T=298.15K. in Journal of Solution Chemistry. 2019;48(3):296-328.
doi:10.1007/s10953-018-0839-4 .

Ivanović, Tijana, Popović, Daniela, Miladinović, Jelena, Rard, Joseph A., Miladinović, Zoran P., Belošević, Svetlana, Trivunac, Katarina, "Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH(2)PO(4)+(1-y)KH2PO4}(aq) System at T=298.15K" in Journal of Solution Chemistry, 48, no. 3 (2019):296-328,
https://doi.org/10.1007/s10953-018-0839-4 . .

TY  - JOUR
AU  - Milosavljević, Milutin
AU  - Babincev, Ljiljana M.
AU  - Belošević, Svetlana
AU  - Daničić, Dunja
AU  - Milošević, Milena D.
AU  - Rusmirović, Jelena
AU  - Marinković, Aleksandar
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3903
AB  - The innovative laboratory procedure for the synthesis of copper(II) hydroxide in the form of the aqueous suspension was developed. The reaction mechanism consists of the reaction between copper(II) sulphate pentahydrate and sodium carbonate by successive ion exchange of carbonate ions with the hydroxide ones in a multistep process. Production of copper(II) carbonate and sodium sulphate by reacting of copper(II) sulphate with sodium carbonate was followed by addition of sodium hydroxide solution whereby the product, copper(II) hydroxide, was obtained by releasing an equimolar amount of sodium carbonate. It was determined that, the equimolar reaction of copper(II) sulphate and sodium hydroxide lead to the maximal reactants exploitation. Sodium phosphate, formed in the final process stage by addition of 10% phosphoric acid solution, acted as a copper(II) hydroxide stabilizer. High yield of the product was obtained by optimizing the synthesis parameters: reaction time, molar ratio of reactants and the reaction temperature. The obtained product was formulated to obtain a commercial product, which is used as a fungicide and bactericide.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Innovative environmentally friendly technology for copper(II) hydroxide production
EP  - 370
IS  - 6
SP  - 363
VL  - 72
DO  - 10.2298/HEMIND180630023M
ER  - 

@article{
author = "Milosavljević, Milutin and Babincev, Ljiljana M. and Belošević, Svetlana and Daničić, Dunja and Milošević, Milena D. and Rusmirović, Jelena and Marinković, Aleksandar",
year = "2018",
abstract = "The innovative laboratory procedure for the synthesis of copper(II) hydroxide in the form of the aqueous suspension was developed. The reaction mechanism consists of the reaction between copper(II) sulphate pentahydrate and sodium carbonate by successive ion exchange of carbonate ions with the hydroxide ones in a multistep process. Production of copper(II) carbonate and sodium sulphate by reacting of copper(II) sulphate with sodium carbonate was followed by addition of sodium hydroxide solution whereby the product, copper(II) hydroxide, was obtained by releasing an equimolar amount of sodium carbonate. It was determined that, the equimolar reaction of copper(II) sulphate and sodium hydroxide lead to the maximal reactants exploitation. Sodium phosphate, formed in the final process stage by addition of 10% phosphoric acid solution, acted as a copper(II) hydroxide stabilizer. High yield of the product was obtained by optimizing the synthesis parameters: reaction time, molar ratio of reactants and the reaction temperature. The obtained product was formulated to obtain a commercial product, which is used as a fungicide and bactericide.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Innovative environmentally friendly technology for copper(II) hydroxide production",
pages = "370-363",
number = "6",
volume = "72",
doi = "10.2298/HEMIND180630023M"
}

Milosavljević, M., Babincev, L. M., Belošević, S., Daničić, D., Milošević, M. D., Rusmirović, J.,& Marinković, A.. (2018). Innovative environmentally friendly technology for copper(II) hydroxide production. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 72(6), 363-370.
https://doi.org/10.2298/HEMIND180630023M

Milosavljević M, Babincev LM, Belošević S, Daničić D, Milošević MD, Rusmirović J, Marinković A. Innovative environmentally friendly technology for copper(II) hydroxide production. in Hemijska industrija. 2018;72(6):363-370.
doi:10.2298/HEMIND180630023M .

Milosavljević, Milutin, Babincev, Ljiljana M., Belošević, Svetlana, Daničić, Dunja, Milošević, Milena D., Rusmirović, Jelena, Marinković, Aleksandar, "Innovative environmentally friendly technology for copper(II) hydroxide production" in Hemijska industrija, 72, no. 6 (2018):363-370,
https://doi.org/10.2298/HEMIND180630023M . .