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

172
VIII Group 17 (halogen) compounds and complexes
are listed in Table VIII-8. The formation constants determined in 6 M NaClO 4 solution
were not considered in the SIT extrapolations, since the ionic strength (I = 8.912
mol·kg –1 ) is well above of the recommended range.
Table VIII-8: Experimental formation constants of the species SnCl
Method Ionic media t/°C log10
Sn 2+ + Cl – SnCl +
Reported Recalculated (a) Accepted (b)
β
q
2 − q
q
.
Reference
Ise-Sn 0 corr ((H/K)Cl) 25 1.51 1.34 1.34 ± 0.50 [1928PRY]
pol 0 corr (KCl) ? 1.85 [1949RIC/POP]
Ise-Sn 2.03 M HClO 4 25 1.05 ±0.01 1.07 ± 0.20 1.03 ± 0.40 c [1950DUK/COU]
kin 2.03 M HClO 4 25 1.11 1.07 ± 0.50 [1951DUK/PIN]
Ise-Sn 3 M (H/Na)ClO 4 0 0.97 0.96 ± 0.02 0.89 ± 0.30 [1952VAN/RHO]
25
35
45
1.15
1.22
1.27
1.13 ± 0.03
1.17 ± 0.04
1.23 ± 0.03
1.05 ± 0.30
1.10 ± 0.30
1.15 ± 0.30
Ise-Sn 3 M (H/Na)ClO 4 25 1.18 ±0.01 1.11 ± 0.20 [1961TOB/HUG]
sol 4 M H 2 SO 4 /HCl 25 1.45 [1962HAI/ZOL]
em HCl (varied) 25 1.05 [1969CAR]
Ise-Sn 0.5 M NaClO 4 25 1.09
1.08 ± 0.40 [1975FED/BOL]
1.0 M NaClO 4
3.0 M NaClO 4
4.0 M NaClO 4
6.0 M NaClO 4
25
25
25
25
1.02
1.18
1.34
1.80
1.00 ± 0.40
1.11 ± 0.40
1.25 ± 0.40
1.63 ± 0.40
Ise-Sn 1.0 M LiClO 4 25 1.08 [1976SAM/LYA]
vlt 1.0 M NaNO 3 20 0.73 ± 0.10 0.66 ± 0.11
[1981PET/MIL]
0 corr (NaCl) 20
1.25 ± 0.50 1.25 ± 0.50
Möss (d) 3.5 M
(e)
1.18 [1984CHE/HSU]
(Na,H)(ClO 4 ,Cl)
spe 0 corr ((H/Na)Cl) 25 1.42 ± 0.05
1.42 ± 0.30 [2001MUL/SEW] (f)
50
100
150
200
1.45 ± 0.08
1.43 ± 0.10
1.52 ± 0.04
1.58 ± 0.08
1.45 ± 0.30
1.43 ± 0.40
1.52 ± 0.40
1.58 ± 0.40
Sn 2+ + 2 Cl – SnCl 2 (aq)
Ise-Sn 0 corr ((H/K)Cl) 25 2.25 2.13 2.13 ± 0.50 [1928PRY]
pol 0 corr (KCl) ? 2.31 [1949RIC/POP]
Ise-Sn 2.03 M HClO 4 25 1.76 ±0.02 1.6 ± 0.4 [1950DUK/COU]
(Continued on next page)
CHEMICAL THERMODYNAMICS OF TIN, ISBN 978-92-64-99206-1, © OECD 2012