Equations of State for NaCl and CaCl2 Solutions of Arbitrary Concentration at Temperatures 423.15-623.15 K and Pressures up to 5 kbar

被引：5

作者：

Ivanov, M. V. ^{[1
]}

Bushmin, S. A. ^{[1
]}

Aranovich, L. Y. ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Precambrian Geol & Geochronol, St Petersburg 199034, Russia

[2] Russian Acad Sci, Inst Geol Ore Deposits Petrog Mineral & Geochem, Moscow 119017, Russia

来源：

DOKLADY EARTH SCIENCES | 2018年 / 481卷 / 02期

关键词：

CHLORIDE SOLUTIONS; CALCIUM-CHLORIDE; MOLAR VOLUME; MOLALITIES; DENSITIES; MODEL; MPA;

D O I：

10.1134/S1028334X18080287

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Equations of state valid for all possible salt concentrations in solution are obtained for binary fluids H2ONaCl and H2OCaCl2. The equations are based on the empirical form of the Gibbs free energy for salt solutions of arbitrary concentration, developed earlier. Based on experimental data on the PVTx properties the obtained earlier thermodynamic description of H2ONaCl and H2OCaCl2 solutions at saturated vapor pressure is extended towards higher pressures. For H2ONaCl pressures are up to 5 kbar. For H2OCaCl2 pressures cover the range of available experimental data up to 0.7 kbar. The equations allow precise calculation of the whole set of thermodynamic parameters of the discussed salt solutions in the temperature ranges 423.15-573.15 K and 423.15-623.15 K, corresponding to low temperature hydrothermal ore deposits, that could be relevant for thermodynamic modeling of ore-bearing fluids at such deposits.

引用

页码：1086 / 1090

页数：5

共 21 条

[1] Equations of State for NaCl and CaCl2 Solutions of Arbitrary Concentration at Temperatures 423.15–623.15 K and Pressures up to 5 kbar
M. V. Ivanov
S. A. Bushmin
L. Y. Aranovich
Doklady Earth Sciences, 2018, 481 : 1086 - 1090
[2] An Empirical Model of the Gibbs Free Energy for Solutions of NaCl and CaCl2 of Arbitrary Concentration at Temperatures from 423.15 K to 623.15 K under Vapor Saturation Pressure
Ivanov, M. V.
Bushmin, S. A.
Aranovich, L. Y.
DOKLADY EARTH SCIENCES, 2018, 479 (02) : 491 - 494
[3] An Empirical Model of the Gibbs Free Energy for Solutions of NaCl and CaCl2 of Arbitrary Concentration at Temperatures from 423.15 K to 623.15 K under Vapor Saturation Pressure
M. V. Ivanov
S. A. Bushmin
L. Y. Aranovich
Doklady Earth Sciences, 2018, 479 : 491 - 494
[4] Vapor pressures of aqueous NaCl and CaCl2 solutions at elevated temperatures
Shibue, Y
FLUID PHASE EQUILIBRIA, 2003, 213 (1-2) : 39 - 51
[5] Thermal Conductivity of Aqueous Solutions of KCl–NaCl–CaCl2 System at High Temperatures and Pressures
V. S. El'darov
High Temperature, 2003, 41 : 327 - 331
[6] Solubility of CO2 in aqueous solutions of NaCl, KCl, CaCl2 and their mixed salts at different temperatures and pressures
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Hou, Minqiang
Yang, Guanying
Han, Buxing
JOURNAL OF SUPERCRITICAL FLUIDS, 2011, 56 (02): : 125 - 129
[7] Solubility of CO2 in Aqueous Solutions of CaCl2 or MgCl2 and in a Synthetic Formation Brine at Temperatures up to 423 K and Pressures up to 40 MPa
Tong, Danlu
Trusler, J. P. Martin
Vega-Maza, David
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2013, 58 (07): : 2116 - 2124
[8] Measurement of Solubility of CO2 in NaCl, CaCl2, MgCl2 and MgCl2 + CaCl2 Brines at Temperatures from 298 to 373 K and Pressures up to 20 MPa Using the Potentiometric Titration Method
Liu, Bo
Mahmood, Barham Sabir
Mohammadian, Erfan
Khaksar Manshad, Abbas
Rosli, Nor Roslina
Ostadhassan, Mehdi
ENERGIES, 2021, 14 (21)
[9] VAPOR-PRESSURES AND DENSITIES OF NACL(AQ) AND KCL(AQ) AT THE TEMPERATURE 623-K AND CACL2(AQ) AT THE TEMPERATURES 623-K AND 643-K
CROVETTO, R
LVOV, SN
WOOD, RH
JOURNAL OF CHEMICAL THERMODYNAMICS, 1993, 25 (01): : 127 - 138
[10] Thermodynamic study on levulinic acid in NaCl, (C2H5)4NI and mixed MgCl2/NaCl and CaCl2/NaCl aqueous solutions at T=298.15 K
Arena, Giuseppe
Bretti, Clemente
Grasso, Giuseppa Ida
Lando, Gabriele
Sammartano, Silvio
Sgarlata, Carmelo
JOURNAL OF CHEMICAL THERMODYNAMICS, 2019, 139

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