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Concentrations of undissociated phenolic acids under experimental conditions
| Compound | Dissociation Constant | pK | Concentration of Undissociated Compound |
|---|---|---|---|
| μm | % | ||
| Benzoic acid | 64.6 | 4.19 | 4.7 |
| 2-Hydroxybenzoic acid | 1,071 (K1) | 2.97 (pK1) | 0.3 |
| 4-Hydroxybenzoic acid | 33.1 (K1) | 4.48 (pK1) | 8.7 |
