Protonation and Solvation Thermodynamics of Some Naphthol Derivatives in KCl Aqueous Solution of Different Ionic Strengths

Table 4

The protonation constants at infinite dilution () and parameters ( and ) for the dependence of the protonation constants on ionic strength for L1, L2, and L3 at different temperatures.

Ligand		293.15 K	298.15 K	303.15 K	308.15 K	313.15 K
L1		9.46	9.45	9.44	9.42	9.40
		0.27	0.26	0.28	0.26	0.27
		0.02	0.02	0.03	0.02	0.03
L2		10.19	10.17	10.16	10.14	10.13
		0.38	0.36	0.37	0.36	0.37
		0.95	0.93	0.93	0.95	0.94
		8.89	8.86	8.85	8.84	8.82
		0.25	0.23	0.24	0.23	0.24
		0.21	0.26	0.23	0.25	0.21
L3		10.37	10.35	10.33	10.32	10.30
		0.77	0.75	0.73	0.72	0.77
		0.09	0.08	0.07	0.08	0.09
		8.46	8.44	8.42	8.43	8.40
		0.46	0.48	0.49	0.49	0.50
		0.03	0.02	0.03	0.02	0.01
		1.31	1.29	1.27	1.26	1.24
		0.48	0.45	0.43	0.46	0.46
		0.02	0.02	0.03	0.02	0.03