Research Article
General Analytical Procedure for Determination of Acidity Parameters of Weak Acids and Bases
Table 6
The p
’s values of compounds determined in the mixture containing four-weak electrolytes (acids and bases) and a strong acid (HCl) at 25°C.
| | Composition of D | p | pKPhA ± | pKMA ± | pKPy3CA ± | pKA ± s |
| | PhA + MA + Py3CA + A + HCl | pK1 | 3.11 ± 0.05 | 3.74 ± 0.03 | 4.8* | 4.68 ± 0.02 | | pK2 | 5.62 ± 0.03 | — | — | — |
| | Composition of D | p | pKAA ± | pKBi ± | pKImH ± | pKBtH ± |
| | AA + Bi + ImH + BtH + HCl | pK1 | 4.29 ± 0.13 | 5.98 ± 0.14 | 7.55 ± 0.14 | 9.19 ± 0.14 |
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*p value const. from the literature [see Table 11].
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