From Sigma Buffer Reference Center
Sodium Acetate – Acetic Acid Buffer PREPARATION | pH 3.7–5.61 Sodium acetate trihydrate, CH3COONa • 3H2O MW 136.09; 0.2 M contains 27.22 g/L.
x mL 0.2 M-NaOAc and y mL 0.2 M-HOAc mixed
| pH @ 18 °C | x mL 0.2 M-NaOAc | y mL 0.2 M-HOAc |
|---|---|---|
| 3.7 | 10.0 | 90.0 |
| 3.8 | 12.0 | 88.0 |
| 4.0 | 18.0 | 82.0 |
| 4.2 | 26.5 | 73.5 |
| 4.4 | 37.0 | 63.0 |
| 4.6 | 49.0 | 51.0 |
| 4.8 | 59.0 | 41.0 |
| 5.0 | 70.0 | 30.0 |
| 5.2 | 79.0 | 21.0 |
| 5.4 | 86.0 | 14.0 |
| 5.6 | 91.0 | 9.0 |
- Printer-friendly version
- Log in to post comments