Research Article
Thermodynamic Modeling of Boron Species in the Ternary System Na2O-B2O3-H2O at 298.15 K
Table 1
Experimental and calculated solubilities of invariant points for the system Na2O-B2O3-H2O at 298.15 K.
| No. | | Na2O | B2O3 | pH | Equilibrium solid phase | Ref. |
| A | Experimental data | 0.00 | 3.06 | 4.27 | H3BO3 | [12] | Experimental data | 0.00 | 3.25 | 2.50 | H3BO3 | [27] | A | Calculated data | 0.00 | 3.07 | 3.15 | H3BO3 | This work | E1 | Experimental data | 1.69 | 10.26 | — | H3BO3 + NaB5O8·5H2O | [12] | E1 | Experimental data | 1.62 | 10.08 | 6.22 | H3BO3 + NaB5O8·5H2O | [14] | E1 | Calculated data | 1.83 | 10.27 | 6.50 | H3BO3 + NaB5O8·5H2O | This work | E2 | Experimental data | 2.73 | 12.73 | 7.18 | NaB5O8·5H2O + Na2B4O7·10H2O | [12] | E2 | Experimental data | 2.82 | 12.70 | — | NaB5O8·5H2O + Na2B4O7·10H2O | [14] | E2 | Calculated data | 2.87 | 13.10 | 6.83 | NaB5O8·5H2O + Na2B4O7·10H2O | This work | E3 | Experimental data | 9.38 | 10.64 | 13.08 | Na2B4O7·10H2O + NaBO2·4H2O | [12] | E3 | Calculated data | 10.34 | 12.08 | 12.73 | Na2B4O7·10H2O + NaBO2·4H2O | This work |
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