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

VII.3 Gaseous tin hydrides 135
[1962GLU] and/or [1970GLU]. The value of [1964JEF/MCK] was estimated by
analogy with other hydrides of Group 14.
Table VII-8: Standard entropy of stannane.
Uncertainty
Reference Type of data source S ο m (SnH 4 , g, 298.15 K)/
–1
J·K
–1·mol
[1952ROS/WAG] Compilation 227.6
[1964JEF/MCK] Compilation 226 ± 2 (original)
[1969SHA/MOR] Experimental 228.7
[1973SHI/MAR] Experimental 228.3
[1977BAR/KNA] Compilation 228.7
[1982WAG/EVA] Compilation 227.68
[1993BAR] Compilation 228.765
For the enthalpy of formation Gunn and Green [1961GUN/GRE] derived a
value of 162.8 kJ·mol –1 from heats of explosive decomposition. Saalfeld and Svec
[1961SAA/SVE] used mass spectrometry (96.2 kJ·mol –1 ). Published data are given in
Table VII-9.
Table VII-9: Standard enthalpy of formation of stannane.
Reference Type of data source Δ fH ο
m (SnH 4 , g, 298.15 K)/
kJ·mol –1
[1952ROS/WAG] Compilation 163
Uncertainty
[1961GUN/GRE] Experiment 162.8 ± 2.1 (original)
[1961SAA/SVE] Experiment 96.2
[1969SHA/MOR] Calculation 166
[1977BAR/KNA] Compilation 163
[1982WAG/EVA] Compilation 162.8
[1993BAR] Compilation 162.8
ο
C p,m
No data source suggests an uncertainty in , but the reviewer assigned a
value of ± 3.0 J·K –1·mol –1 . With the use of Eq. (VII.27) and data in Table VII-7, the
selected data are generated by the equation
ο 600K
C p ,m 298
[ ]
K (SnH 4, g, T )/J·K –1·mol –1 = 51.80 + 0.03766 T/K − 1.130 × 10 6 (T/K) –2 .
CHEMICAL THERMODYNAMICS OF TIN, ISBN 978-92-64-99206-1, © OECD 2012