André, L.; Christov, C.; Lassin, A.; Azaroual, M., Water Rock Interaction [WRI14], Thermodynamic behavior of FeCl3-H2O and HCl-FeCl3-H2O systems - A Pitzer Model at 25°C, Procedia Earth and Planetary Science, 2013, 7, 14-18.
André, L.; Christov, C.; Lassin, A.; Azaroual, M., A thermodynamic model for solution behavior and solid-liquid equilibrium in Na-K-Mg-Ca-Al(III)-Fe(III)-Cr(III)-Cl-H2O system from low to very high concentration at 25°C, Acta Scientifica Naturalis, 2019, 6(1), 26-36. DOI: https://doi.org/10.2478/asn-2019-0004.
Balarew, C.; Rabadjieva, D.; Tepavitcharova, S.; Christov, C.; Angelova, O., Study of (m1RbBr+m2NiBr2)(aq), where m denotes molality, at the temperature 298.15 K, J. Chem. Thermodynamics, 1998, 30, 1087-1094.
Barkov, D.; Christov, C.; Ojkova, T., Thermodynamic study of (m1Cs2SeO4 + m2NiSeO4)(aq), where m denotes molality, at the temperature 298.15 K, J. Chem. Thermodynamics, 2001, 33, 1073-1080. https://doi.org/10.1006/jcht.2000.0818.
Christov, C., Thermodynamic study of (b1RbCl + b2MeCl2)(aq), where b denotes molality and Me denotes Mn, Co, NI or Cu, at the temperature 298.15 K, on the basis of Pitzer’s model, J. Chem. Thermodynamics, 1994, 26, 1071-1080.
Christov, C., Thermodynamic study of the co-crystallization of 2RbCl.NiCl2.2H2O and 2RbCl.MnCl2.2H2O at the temperature 298.15 K, J. Chem. Thermodynamics, 1996, 28, 743-752. https://doi.org/10.1006/jcht.1996.0068.
Christov, C., Thermodynamics of formation of solid solutions of the type (Me, Me’) SeO4.6H2O (Me, Me’ = Mg, Co, Ni, Zn) from aqueous solutions, J. Chem. Thermodynamics, 1997, 29, 481-489. https://doi.org/10.1006/jcht.1996.0181.
Christov, C., Study of (m1KCl + m2MeCl2)(aq), and (m1K2SO4 + m2MeSO4)(aq) where m denotes molality and Me denotes Cu or Ni, at the temperature 298.15 K, J. Chem. Thermodynamics, 1999, 31, 71-83. https://doi.org/10.1006/jcht.1998.0419.
Christov, C., Thermodynamic study of the Na-Cu-Cl-SO4 -H2O system at the temperature 298.15 K, J. Chem. Thermodynamics, 2000, 32, 285-295. https://doi.org/10.1006/jcht.1999.0564.
Christov, C., Thermodynamic study of quaternary systems with participation of ammonium and sodium alums and chromium alums, CALPHAD, 2002b, 26, 341-352. https://doi.org/10.1016/S0364-5916(02)00049-4.
Christov, C., Thermodynamic study of the co-crystallization of ammonium, sodium and potassium alums and chromium alums, CALPHAD, 2003, 27, 153-160. https://doi.org/10.1016/S0364-5916(03)00046-4.
Christov, C., Pitzer ion-interaction parameters for Fe(II) and Fe(III) in the quinary {Na+K+Mg+Cl+SO4+H2O} system at T=298.15 K, J. Chem. Thermodynamics, 2004, 36, 223-235. https://doi.org/10.1016/j.jct.2003.11.010.
Christov, C., Thermodynamics of formation of double salts and solid solutions from aqueous solutions, J. Chem. Thermodynamics, 2005, 37, 1036-1060. https://doi.org/10.1016/j.jct.2005.01.008.
Christov, C., An isopiestic study of aqueous NaBr and KBr at 50oC. Chemical Equilibrium model of solution behavior and solubility in the NaBr-H2O, KBr-H2O and Na-K-Br-H2O systems to high concentration and temperature, Geochim. Cosmochim. Acta, 2007, 71, 3357-3369. https://doi.org/10.1016/j.gca.2007.05.007.
Christov, C., Isopiestic Determination of the osmotic coefficients of aqueous MgCl2-CaCl2 Mixed solution at 25oC and 50oC. Chemical equilibrium model of solution behavior and solubility in the MgCl2-H2O, and MgCl2-CaCl2-H2O systems to high concentration at 25oC and 50oC, J. Chem. Eng. Data, 2009a, 54, 627-635. https://doi.org/10.1021/je8005634.
Christov, C., Chemical equilibrium model of solution behavior and solubility in the MgCl2-H2O, and HCl-MgCl2-H2O systems to high concentration from 0oC to 100oC, J. Chem. Eng. Data, 2009b, 54, 2599-2608. https://doi.org/10.1021/je900135w.
Christov, C., Temperature variable chemical model of solution bromide-sulfate interaction parameters and solid-liquid equilibria in the Na-K-Ca-Br-SO4-H2O system, CALPHAD, 2012, 36, 71-81. https://doi.org/10.1016/j.calphad.2011.11.003.
Christov, C., Doctor of Sciences Dissertation, Chemical and Geochemical Modeling. Theory and Practice, Episkop Konstantin Preslavski University of Shumen, 2019.
Christov, C., Thermodynamic models for solid-liquid equilibrium of aluminum, and aluminum-silicate minerals in natural fluids. Current state and perspectives, Review of the Bulgarian Geological Society, 2020, 81(3), 69–71.
Christov, C.; Moller, N., Chemical equilibrium model of solution behavior and solubility in the HNa-K-Cl-OH-HSO4-SO4-H2O system to high concentration and temperature, Geochim. Cosmochim. Acta, 2004, 68, 1309-1331. https://doi.org/10.1016/j.gca.2003.08.017.
Donchev, S.; Tsenov, T.; Christov, C., Chemical and geochemical modeling. Thermodynamic models for binary fluoride systems from low to very high concentration (> 35 m) at 298.15 K, Acta Scientifica Naturalis, 2021, 8(2), 1-15. https://doi.org/10.2478/asn-2021-0014.
El Guendouzi, M.; Faridi, J., Thermodynamic properties and solubility of potassium fluoride in aqueous solutions at various temperatures, J. Fluorine Chem., 2020, 235, 109558. https://doi.org/10.1016/j.jfluchem.2020.109558.
El Guendouzi, M.; Faridi, J., Vapor-Liquid Equilibrium and Solid Phase in the Ternary System KF−NaF−H2O at Different Temperatures, J. Chem. Eng. Data, 2021, 66(1), 189–198. https://dx.doi.org/10.1021/acs.jced.0c00522.
El Guendouzi, M.; Faridi, J.; Khamar, L., Chemical speciation of aqueous hydrogen fluoride at various temperatures from 298.15 K to 353.15 K, Fluid Phase Equilibria, 2019, 499, 112244. https://doi.org/10.1016/j.fluid.2019.112244.
Elmaazouzi, H.; Messnaoui, B.; Tounsi, A.; Dinane, A.; Samaouali, A., Chemical speciation, thermodynamic properties, and salt solubility in aqueous hydrogen fluoride at various temperatures part I: Liquid chemical composition and thermodynamics properties of the HF-H2O system, Journal of Fluorine Chemistry, 2022, 253, 109918. https://doi.org/10.1016/j.jfluchem.2021.109918.
Hamer, W.J.; Wu, Y-C., Osmotic coefficients and mean activity coefficients of uni-univalent electrolytes in water at 25°C. J. Phys. Chem. Ref. Data, 1972, 1, 1047-1099. DOI: 10.1063/1.3253108.
Harvie, C.; Moller, N.; Weare, J., The prediction of mineral solubilities in natural waters: The Na-KMg-Ca-H-Cl-SO4-OH-HCO3-CO3-CO2-H2O system from zero to high concentration at 25°C. Geochim. Cosmochim. Acta, 1984, 48, 723-751. DOI: 10.1016/0016-7037(84)90098-X.
Kim, H.-T.; Frederick, W., Evaluation of Pitzer ion interaction parameters of aqueous electrolytes at 25oC. 1. Single salt parameters. J. Chem. Eng. Data, 1988, 33, 177-184. https://doi.org/10.1021/je00052a035.
Lach, A.; André, L.; Guignot, S.; Christov, C.; Henocq, P.; Lassin, A., A Pitzer parameterization to predict solution properties and salt solubility in the H-Na-K-Ca-Mg-NO3-H2O system at 298.15 K, J. Chem. Eng. Data, 2018, 63, 787−800. DOI: 10.1021/acs.jced.7b00953.
Lassin, A.; Christov, C.; André, L.; Azaroual, M., A thermodynamic model of aqueous electrolyte solution behavior and solid-liquid equilibrium in the Li-H-Na-K-Cl-OH-H2O system to very high concentrations (40 Molal) and from 0 to 250°C. Amer. J. Sci., 2015, 315, 204–256. DOI: 10.2475/03.2015.02.
Lassin, A.; Guignot, S.; Lach, A.; Christov, C.; André, L.; Madé, B., Modeling the solution properties and mineral-solution equilibria in radionuclide-bearing aqueous nitrate systems. Application to binary and ternary systems containing U, Th or lanthanides, at 25°C, J. Chem. Eng. Data, 2020, DOI: 10.1021/acs.jced.0c00180.
Ojkova, T.; Christov, C.; Mihov, D., Thermodynamic study of (NH4)2SeO4 (aq) and K2SeO4 (aq) at the temperature 298.15 K, Monatsh. Chemie, 1999, 130, 1061-1065. https://doi.org/10.1007/PL00010283.
Park, J.-H.; Christov, C.; Ivanov, A.; Molina, M., On OH uptake by sea salt under humid conditions, Geophysical Research Letters, 2009, 36, LO2802, https://doi.org/10.1029/2008GL036160.
Pitzer, K.S., Thermodynamics of Electrolytes. I. Theoretical Basis and General Equations, J. Phys. Chem., 1973, 77(2), 268–277. https://doi.org/10.1021/j100621a026.
Pitzer, K.S.; Mayorga, G., Thermodynamics of electrolytes. II. Activity and osmotic coefficients for strong electrolytes with one or both ions univalent. J. Phys. Chem., 1973, 77, 2300-2308. https://doi.org/10.1021/j100638a009.
Pitzer, K.S.; Mayorga, G., Thermodynamics of electrolytes. III. Activity and osmotic coefficients for 2-2 electrolytes. J. Soln. Chem., 1974, 3, 539-546. https://doi.org/10.1007/BF00648138.
Trendafelov, D.; Prangova, D.; Nishev, M.; Christov, C., Study of the conversion of BaSO4 into BaCO3 in the fourcomponent water-salt system BaSO4 + Na2CO3 = BaCO3 + Na2SO4, Compt. rend. Acad. Bulg. Sci., 1995a, 48, 39-41.
Trendafelov, D.; Christov, C.; Balarew, C.; Karapetkova, A., Study of the Conversion of CaSO4 to CaCO3 within the CaSO4 + Na2CO3 = CaCO3 + Na2SO4 fourcomponent water-salt system, Coll. Czech. Chem. Commun., 1995b, 60, 2107-2111. https://doi.org/10.1135/cccc19952107.