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

48
III Selected tin data
Table III-2: Selected thermodynamic data for reactions involving tin compounds and
complexes. All ionic species listed in this table are aqueous species. Unless noted
otherwise, all data refer to the reference temperature of 298.15 K and to the standard
state, i.e., a pressure of 0.1 MPa and, for aqueous species, infinite dilution (I = 0). The
uncertainties listed below each value represent total uncertainties and correspond in
principal to the statistically defined 95% confidence interval. Values obtained from
internal calculation, cf. footnote (a), are rounded at the third digit after the decimal point
and may therefore not be exactly identical to those given in Chapters V to XI.
Systematically, all the values are presented with three digits after the decimal point,
regardless of the significance of these digits. The data presented in this table are
available on computer media from the OECD Nuclear Energy Agency.
Species
Reaction
ο
ο
ο
ο
log10
K
Δ
rGm
Δ
rH
m
Δ
rSm
(kJ·mol –1 ) (kJ·mol –1 ) (J·K –1·mol –1 )
Sn 4+ 2H + + Sn 2+ H 2 (g) + Sn 4+
− 12.982
±0.676
74.101
±3.859
SnOH + H 2 O(l) + Sn 2+ H + + SnOH +
− 3.530
±0.400
20.149
±2.283
Sn 3 (OH) 4
2+
4H 2 O(l) + 3Sn 2+ 4H + + Sn 3 (OH) 4
2+
− 5.600
±0.470
31.965
±2.683
Sn(OH) 2 (aq) 2H 2 O(l) + Sn 2+ 2H + + Sn(OH) 2 (aq)
− 7.680
±0.400
43.838
±2.283
Sn(OH) 4 (aq)
2H 2 O(l) + SnO 2 (cass) Sn(OH) 4 (aq)
− 8.060
±0.110
46.007
±0.628
Sn(OH) 3
–
3H 2 O(l) + Sn 2+ 3H + + Sn(OH) 3
–
− 17.000
±0.600
97.037
±3.425
Sn(OH) 3
–
H 2 O(l) + OH – + SnO(cr) Sn(OH) 3
–
− 0.840
±0.020
4.795
±0.114
Sn(OH) 5
–
H 2 O(l) + Sn(OH) 4 (aq) H + + Sn(OH) 5
–
− 8.600
±0.400
49.089
±2.283
(Continued on next page)
CHEMICAL THERMODYNAMICS OF TIN, ISBN 978-92-64-99206-1, © OECD 2012