Table 1. Comparison of theoretical and experimental changes in the mass of Mg anode at different currentsa.
| i, mA | Anode mass change, g | Solids produced, g | Current efficiency | Mg2+, mg L−1 CaCO3 | ||
|---|---|---|---|---|---|---|
| Theoretical | Experimental | Experimental | Theoretical | |||
| 5 | 0.031 | 0.021 ± 0.003 | 0.162 ± 0.007 | 0.316 | 39.85 | ND |
| 45 | 0.282 | 0.128 ± 0.002 | 1.398 ± 0.004 | 1.841 | 14.06 | 87.5 ± 2.17 |
| 53 | 0.330 | 0.161 ± 0.005 | 1.630 ± 0.021 | 1.841 | 11.26 | 70.04 ± 3.23 |
| 61 | 0.382 | 0.207 ± 0.007 | 1.716 ± 0.008 | 1.841 | 17.09 | 157.50 ± 4.74 |
Theoretical values of changes in anode mass were calculated using eqn (4).