Chemical compositions of an aqueous solution of lanthanum chloride (g L−1).
| Elements | REO | MgO | Al2O3 | Na2O | CaO | ZnO | Fe2O3 |
| Concentration | 303.7 | 0.023 | 0.022 | <0.005 | 0.039 | 0.680 | <0.005 |
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