Table 3 Conditions used for alteration experiments performed under static conditions for G0.40Nd4C glass
From: Chemical durability of peraluminous glasses for nuclear waste conditioning
Experiment | PW | GW | pH 9.5 | pH 10.5 | pH 11.3 | pH 11.5 |
|---|---|---|---|---|---|---|
Solution | Pure water | COx water | Alkaline environment, pH90 °C 9.5 | Alkaline environment, pH90 °C 10.5 | Alkaline environment, pH90 °C 11.3 | Alkaline environment, pH90 °C 11.5 |
Temperature (°C) | 90 | 90 | 90 | 90 | 90 | 90 |
Initial pH90 °C | – | 6.01 | 9.5 | 10.5 | 11.3 | 11.5 |
pH regulation | No | No | Na(OH) | Na(OH) | Na(OH) | No |
Powder particle size (µm) | 20–40 | 63–125 | 63–125 | 63–125 | 63–125 | 63–125 |
Powder SBET (cm2 g−1) | 1440 | 480 | 480 | 480 | 480 | 480 |
Glass mass (g) | 13.89 | 0.93 | 8.25 | 8.25 | 8.25 | 8.25 |
Solution volume (cm3) | 100 | 150 | 100 | 100 | 100 | 100 |
S/V (cm−1) | 200 | 3 | 40 | 40 | 40 | 40 |
