Table 6.

Summary of the ionic strength dependence parameters of Eq. (13) for all the M²⁺/NAC²⁻ species obtained analyzing experimental and literature data at T = 298.15 K and at p = 0.1 MPa.

Species	p*	z*	Yθ (log β0)a	$\frac{\mathrm{\partial Y}}{\mathrm{\partial T}}$
CaL0(aq)	1	8	2.17 ± 0.08b	–
CaHL+	2	8	10.77 ± 0.12	–
CaL22−	2	8	4.80 ± 0.16	–
MgL0(aq)	1	8	3.01 ± 0.14	–
MgHL+	2	8	12.14 ± 0.10	–
ZnL0(aq)	1	8	6.49 ± 0.09	−0.010c
ZnHL+	2	8	11.76 ± 0.10	–
ZnL22−	2	8	12.23 ± 0.09	0.006c
ZnL34−	3	0	15.2 ± 0.2	−0.004c
ZnL2(OH)3−	1	2	2.7 ± 0.2	−0.070c
ZnL(OH)−	0	6	−1.0 ± 0.2	−0.015c

	Yθ
c0	0.76 ± 0.09	–
c1	0.11 ± 0.02	–

^alog β⁰_MHiL values refer to Eq. (1b).

^b95% Confidence interval.

^cTentative values, valid at I = 0.15 mol dm⁻³, obtained from comparison with NIST data [62] (see text); standard uncertainties: u(T) = 0.1 K, u(p) = 1 kPa.