Exposure Time (days) | Electrode Potential (mV) | pH of Environment | Concentration of the distilled water in mil/litre |
0 | −0.550 | 7.0 | 500 |
7 | −0.563 | 6.8 | 505 |
14 | −0.631 | 6.8 | 510 |
21 | −0.647 | 6.8 | 515 |
28 | −0.702 | 6.8 | 520 |
35 | −0.700 | 6.8 | 520 |
42 | −0.701 | 7.0 | 525 |