| Autor: |
Felmy, Andrew R., Rai, Dhanpat, Mason, Marvin J. |
| Zdroj: |
Journal of Solution Chemistry; June 1992, Vol. 21 Issue: 6 p525-532, 8p |
| Abstrakt: |
The solubility of powellite [CaMoO4(c)] was studied in aqueous Na2MoO4, CaCl2 and Ca(NO3)2 solutions ranging in concentrations from 1×10-4M to 1.0M and over equilibration times extending to 36 days. Our experimental data were interpreted using the aqueous ion-interaction model of Pitzer and coworkers. The Ca2+-MoO42- ion-interactions were found to be analogous to Ca2+-SO42-. The use of Ca2+-MoO42- ion-interactions parameters (ß(0)=0.2, ß(1) = 3.1973 and ß(2)) and a logKsp of -7.93 gave excellent predictions of all of the experimental data. Commonion ternary interaction parameters such as MoO42--Cl- or MoO42--NO3- were not required. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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