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IUPAC-NIST Solubility Data Series. 95. Alkaline Earth Carbonates in Aqueous Systems. Part 1. Introduction, Be and Mg
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10.1063/1.3675992
/content/aip/journal/jpcrd/41/1/10.1063/1.3675992
http://aip.metastore.ingenta.com/content/aip/journal/jpcrd/41/1/10.1063/1.3675992

Figures

Image of FIG. 1.
FIG. 1.

Solubility of magnesite in MgCO3 + H2O + CO2 systems divided by the cubic root of the equilibrium CO2 partial pressure.

Image of FIG. 2.
FIG. 2.

Solubility constants of magnesite derived from solubility data in the system MgCO3 + H2O + CO2 (solid symbols: accepted data; open symbols: rejected data) with Model 1 (with ion pair); predictions of Eq. (114) (line).

Image of FIG. 3.
FIG. 3.

Solubility constants of magnesite derived from solubility data in the system MgCO3 + H2O + CO2 (solid symbols: accepted data; open symbols: rejected data) with Model 2 (without ion pair); predictions of Eq. (115) (line).

Image of FIG. 4.
FIG. 4.

Solubility of magnesite in the system MgCO3 + H2O measured (open symbols: rejected data) and predicted with Model 1 (solid line) and Model 2 (dashed line).

Image of FIG. 5.
FIG. 5.

Solubility of nesquehonite in MgCO3·3H2O + H2O + CO2 systems divided by the cubic root of the equilibrium CO2 partial pressure.

Image of FIG. 6.
FIG. 6.

Solubility constants of nesquehonite derived from solubility data in the system MgCO3·3H2O + H2O + CO2 (solid symbols: accepted data; open symbols: rejected data) with Model 1 (with ion pair); predictions of Eq. (118) (line).

Image of FIG. 7.
FIG. 7.

Solubility constants of nesquehonite derived from solubility data in the system MgCO3·3H2O + H2O + CO2 (solid symbols: accepted data; open symbols: rejected data) with Model 2 (without ion pair); predictions of Eq. (119) (line).

Image of FIG. 8.
FIG. 8.

Solubility of nesquehonite in the system MgCO3·3H2O + H2O measured (solid symbols: accepted data) and predicted with Model 1 (solid line) and Model 2 (dashed line).

Image of FIG. 9.
FIG. 9.

Solubility of lansfordite in MgCO3·5H2O + H2O + CO2 systems divided by the cubic root of the equilibrium CO2 partial pressure.

Image of FIG. 10.
FIG. 10.

Solubility constants of lansfordite derived from solubility data in the system MgCO3·5H2O + H2O + CO2 (accepted data) with Model 1 (with ion pair); predictions of Eq. (120) (line).

Image of FIG. 11.
FIG. 11.

Solubility constants of lansfordite derived from solubility data in the system MgCO3·5H2O + H2O + CO2 (accepted data) with Model 2 (without ion pair); predictions of Eq. (121) (line).

Tables

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TABLE 1.

Thermodynamic properties of the dissolution of CO2 at 25 °C derived from different semi-empirical equations

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TABLE 2.

Henry constant of CO2 predicted in this study and by Crovetto32

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TABLE 3.

Sechenov coefficients for CO2 in various electrolyte solutions, together with fitted values

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TABLE 4.

Single-ion Sechenov coefficients and Pitzer λ parameters for CO2 in electrolytes, with temperature dependence

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TABLE 5.

Enthalpy and entropy of the first dissociation of CO2 at 298.15 K estimated from different sources

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TABLE 6.

Values of −lg(K 1) from the Harned and Davis50 experiments obtained with different data analysis techniques

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TABLE 7.

Enthalpy and entropy of the second dissociation of CO2 at 298.15 K estimated from different sources

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TABLE 8.

Stability constants of alkaline earth bicarbonate ion pairs

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TABLE 9.

Stability constants of alkaline earth carbonate ion pairs

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TABLE 10.

Pitzer parameters for M(HCO3)2

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TABLE 11.

Stability constants of alkaline earth hydroxide ion pairs

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TABLE 12.

Single-electrolyte Pitzer parameters for M(OH)2

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TABLE 13.

Two-electrolyte ion interactions

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TABLE 14.

Overview of magnesium carbonate solubility data in aqueous systems

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TABLE 15.

Data collected for the evaluation of the solubility of magnesite in the system MgCO3 + H2O + CO2

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TABLE 16.

Evaluation of magnesite solubility in the system MgCO3 + H2O + CO2. Model 1 = with ; Model 2 = no

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TABLE 17.

Data collected for the evaluation of the solubility of MgCO3 in the system MgCO3 + H2O + CO2 + NaCl

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TABLE 18.

Data collected for the evaluation of the solubility of magnesite in the system MgCO3 + H2O

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TABLE 19.

Comparison of magnesite solubility in the system MgCO3 + H2O with model predictions

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TABLE 20.

Data collected for the evaluation of the solubility of MgCO3 in the system MgCO3 + H2O + NaCl

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TABLE 21.

Data collected for the evaluation of the solubility of MgCO3 in the system MgCO3 + H2O + Na2SO4

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TABLE 22.

Data collected for the evaluation of the solubility of MgCO3 in the system MgCO3 + H2O + Na2CO3

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TABLE 23.

Data collected for the evaluation of the solubility of MgCO3 in the system MgCO3 + H2O + NaNO3

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TABLE 24.

Data collected for the evaluation of the solubility of MgCO3 in the system MgCO3 + H2O + MgCl2

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TABLE 25.

Data collected for the evaluation of the system MgCO3·3H2O + H2O + CO2, and fit with empirical model

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TABLE 26.

Evaluation of nesquehonite solubility in the system MgCO3·3H2O + H2O + CO2. Model 1 = with MgHCO3 +; Model 2 = no MgHCO3 +

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TABLE 27.

Data collected for the evaluation of the solubility of MgCO3 in the system MgCO3·3H2O + H2O + CO2 + Na2CO3 (all data from Ref. 78 at 25 °C)

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TABLE 28.

Data collected for the evaluation of the solubility of nesquehonite in the system MgCO3·3H2O + H2O

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TABLE 29.

Comparison of nesquehonite solubility in the system MgCO3·3H2O + H2O with model predictions

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TABLE 30.

Data collected for the evaluation of the solubility of lansfordite in the system MgCO3·5H2O + H2O + CO2

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TABLE 31.

Evaluation of lansfordite solubility in the system MgCO3·5H2O + H2O + CO2. Model 1 = with ; Model 2 = no

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/content/aip/journal/jpcrd/41/1/10.1063/1.3675992
2012-03-01
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: IUPAC-NIST Solubility Data Series. 95. Alkaline Earth Carbonates in Aqueous Systems. Part 1. Introduction, Be and Mg
http://aip.metastore.ingenta.com/content/aip/journal/jpcrd/41/1/10.1063/1.3675992
10.1063/1.3675992
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