Chemical Thermodynamics of Tin - Volume 12 - OECD Nuclear ...

108
VII Tin oxygen and hydrogen compounds and complexes
Table VII-1: Experimental equilibrium data for the hydrolysis of tin(II).
log10
β q
Method Ionic media t/°C Reported Recalculated (a) Accepted (b) Reference
Sn 2+ + H 2 O(l) SnOH + + H +
gl → 0 ((Na,H)ClO 4 ) 25 – 1.70 [1939GOR]
sol → 0 (HCl) 25 – 2.07 [1941GAR/HEI]
pot 3 M NaClO 4 25 – 1.70 ± 0.08 [1952VAN/RHO]
Ise-Sn,gl 3 M NaClO 4 25 – 3.92 ± 0.15 – 3.75 ± 0.01 – 3.68 ± 0.10 [1958TOB]
Ise-Sn,gl 3 M NaClO 4 25 – 3.70 ± 0.02 – 3.70 ± 0.01 – 3.63 ± 0.10 [1976GOB]
vol 0.1 M NaNO 3
0.5 M NaNO 3
1.0 M NaNO 3
0.5 M NaCl
20 – 4.1 ± 0.2
– 3.8 ± 0.2
– 4.1 ± 0.2
– 3.1 ± 0.2
– 3.73 ± 0.40
– 3.85 ± 0.40
– 3.83 ± 0.40
– 2.97 ± 0.40
– 3.73 ± 0.40
– 3.84 ± 0.40
– 3.81 ± 0.40
– 2.96 ± 0.40
[1981PET/MIL]
gl 3 M NaCl 25 – 2.18 ± 0.02 [1995DJU/JEL]
Ise-Sn,gl 3 M NaClO 4 25 – 3.77 ± 0.05 – 3.70 ± 0.20 [1997SAL/FER]
3 Sn 2+ + 4 H 2 O(l) Sn (OH)
2+ + 4 H +
3 4
Ise-Sn,gl 3 M NaClO 4 25 – 6.77 ± 0.03 – 6.73 ± 0.01 – 6.60 ± 0.10 [1958TOB]
Ise-Sn,gl 3 M NaClO 4 25 – 6.81 ± 0.03 – 6.81 ± 0.01 – 6.68 ± 0.10 [1976GOB]
gl 0.5 M NaClO 4 25 – 6.30 ± 0.10 – 6.30 ± 0.40 [1991DJO/ZMB]
gl 3 M NaCl 25 – 2.70 ± 0.01 [1995DJU/JEL]
Ise-Sn,gl 3 M NaClO 4 25 – 6.87 ± 0.09 – 6.74 ± 0.20 [1997SAL/FER]
2 Sn 2+ + 2 H 2 O(l) Sn (OH) 2+
+ 2 H +
2 2
Ise-Sn,gl 3 M NaClO 4 25 – 4.45 ± 0.15 [1958TOB]
gl 0.5 M NaClO 4 25 – 4.59 ± 0.08 [1991DJO/ZMB]
Sn 2+ + 2 H 2 O(l) Sn(OH) 2 (aq) + 2 H +
sol → 0 (HCl) 25 – 7.06 [1941GAR/HEI]
vol 0.1 M NaNO 3
0.5 M NaNO 3
1.0 M NaNO 3
0.5 M NaCl
Sn 2+ + 3 H 2 O(l) Sn(OH) 3 – + 3 H +
20 – 7.9 ± 0.2
– 7.9 ± 0.2
– 7.8 ± 0.2
– 8.2 ± 0.2
– 7.89 ± 0.40
– 7.87 ± 0.40
– 7.83 ± 0.40
– 8.22 ± 0.40
– 7.88 ± 0.40
– 7.85 ± 0.40
– 7.80 ± 0.40
– 8.20 ± 0.40
[1981PET/MIL]
sol → 0 (NaOH) 25 – 16.61 – 17.22 ± 0.40 – 17.22 ± 0.40 [1941GAR/HEI]
Ise-Sn 3 M NaClO 4 25 – 18.02 ± 0.04 – 17.82 ± 0.20 [1977MAR]
Ise-Sn 3 M NaClO 4 25 – 17.8 – 17.6 ± 0.3 [1977SMI/KRA]
pot → 0 (NaOH) 25 – 16.88 – 16.88 ± 0.30 [1978DIC/LOT]
vol 0.1 M NaNO 3
0.5 M NaNO 3
1.0 M NaNO 3
0.5 M NaCl
20 – 17.5 ± 0.2
– 17.7 ± 0.2
– 17.6 ± 0.2
– 17.8 ± 0.2
– 17.56 ± 0.40
– 17.58 ± 0.40
– 17.57 ± 0.40
– 17.99 ± 0.40
– 17.55 ± 0.40
– 17.56 ± 0.40
– 17.52 ± 0.40
– 17.97 ± 0.40
[1981PET/MIL]
Ise-Sn,gl 3 M NaClO 4 25 – 15.9 ± 0.1 [1986TUR/KRA]
(a) Re-evaluated values, see Appendix A.
(b) Accepted values corrected to molal scale. The accepted values reported in Appendix A are expressed on
the molar or molal scales, depending on which quantities were used originally by the authors.
CHEMICAL THERMODYNAMICS OF TIN, ISBN 978-92-64-99206-1, © OECD 2012