Table 1 Acid buffering, base buffering and swelling capacities of NaOH pretreated KR.
Pretreatment (%) | Acid buffering capacity (mL) | Base buffering capacity (mL) | Swelling capacity (g/g) |
|---|---|---|---|
UNT | 0.338 | 0.042 | 1.38 ± 0.004 |
0 | 0.362 | 0.04 | 1.4 ± 0.004 |
2 | 0.504 | NA | 1.68 ± 0.016 |
4 | 0.633 | NA | 1.92 ± 0.024 |
6 | 0.726 | NA | 1.99 ± 0.012 |
8 | 0.755 | NA | 1.73 ± 0.012 |
10 | 0.78 | NA | 1.5 ± 0.009 |
