Table 4. Zn2+ (ppm) lixiviated from the zinc containing glasses in distilled water (5mg/ml) and pH.
| 1 day | 4days | 6days | 14days | ||
|---|---|---|---|---|---|
| ZnO15 | Zn 2+ (ppm) | 0.4000±0.0050 | 0.4000±0.0067 | 0.5000±0.0017 | 0.6000±0.0017 |
| pH | 7.3±0.1 | 8.0±0.1 | 8.3±0.1 | 8.4±0.1 | |
| ZnO25 | Zn 2+ (ppm) | 0.2000±0.0071 | 0.4000±0.0096 | 0.4000±0.0011 | 0.5000±0.0010 |
| pH | 7.4±0.1 | 8.1±0.1 | 8.5±0.1 | 8.4±0.1 | |
| ZnO35 | Zn 2+ (ppm) | 0.5000±0.0016 | 0.8000±0.0037 | 1.0000±0.0050 | 1.1000±0.0040 |
| pH | 7.4±0.1 | 7.5±0.1 | 7.5±0.1 | 7.8±0.1 | |
| ZnO40 | Zn 2+ (ppm) | 1.8000±0.0020 | 2.3000±0.0036 | 3.7000±0.0030 | 4.2000±0.0040 |
| pH | 7.1±0.1 | 7.3±0.1 | 7.5±0.1 | 7.3±0.1 |