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

Table 3

Experimental protonation constants ((), (), and ()) of L3, in KCl of different ionic strength and at different temperatures.

		293.15 K	298.15 K	303.15 K	308.15 K	313.15 K
0.000		10.27	10.25	10.24	10.23	10.21
		8.15	8.05 (8.80)	8.03	8.01	8.00
		1.23	1.22 (3.10)	1.20	1.18	1.17
0.005		9.83	9.80	9.78	9.77	9.75
		8.11	8.08	8.07	8.05	8.04
		1.25	1.24	1.23	1.21	1.19
0.163		9.89	9.86	9.84	9.83	9.81
		8.22	8.19	8.17	8.15	8.14
		1.37	1.35	1.34	1.32	1.31
0.521		9.87	9.84	9.83	9.81	9.80
		8.23	8.20	8.20	8.19	8.17
		1.53	1.49	1.49	1.47	1.45
0.941		9.91	9.89	9.87	9.85	9.83
		8.23	8.22	8.22	8.20	8.18
		1.81	1.79	1.79	1.77	1.76
1.940		10.37	10.35	10.33	10.31	10.30
		8.53	8.51	8.50	8.48	8.47
		1.98	1.96	1.95	1.93	1.92
2.701		10.84	10.83	10.81	10.79	10.77
		8.87	8.85	8.84	8.82	8.81
		2.47	2.45	2.43	2.41	2.40
3.702		11.37	11.36	11.34	11.32	11.31
		9.18	9.16	9.15	9.13	9.10
		3.50	3.47	3.46	3.44	3.41

Values in parentheses are the literature [11] protonation constants.