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

212
IX Group 16 compounds and complexes
Appendix A entry on [1953KIN/TOD]. A summary of evaluated data is given in
Table IX-4.
Figure IX-1: Heat capacity function of α-SnS.
80
70
C° p,m
(SnS, α, 298.15 K) = 49.25 J·K –1·mol –1 [1953KIN/TOD]
C° p,m
(SnS, α, 298.15 K) = (49.2 ± 0.5) J·K –1·mol –1 , selected
exp.data [1953KIN/TOD]
data [1974BLA/IGE]
data [99GUR/VEY2]
–1·mol
–1
C° p,m
/J·K
60
50
[1958ORR/CHR]
C p,m
β-SnS, T
α − β
= 875 K
C p,m
SnS(l), T fus
= 1153 K
40
C p
/J·K –1·mol –1 = 35.7 + 0.0131(T/K) + 3.56 x 10 5 (T/K) –2
Fit parameters a to d taken from [1980WIE/CSI2]
a = –19.1440, b = 11.6659, c = –1.99273, d = 0.114905
C p
/J·K –1·mol –1 = exp{a+b ln(T/K)+c [ln(T/K)] 2 +d [ln(T/K)] 3 }
30
0 200 400 600 800 1000 1200
T / K
Table IX-4: The standard entropy of α-SnS, as reported from measurement and
evaluation/compilation.
Reference Type of report S ο m (SnS, α, 298.15 K)/
–1
J·K
–1·mol
[1979WIE/CSI]
Experimental Knudsen effusion/mass
spectrometry
79.9 ± 6.0
[1953KIN/TOD], [1991GUR/VEY] Experimental low temperature C p 77.000 *
[1982WAG/EVA], [1973BAR/KNA], Evaluation/compilation 77.0
[1995ROB/HEM], [1999BIN/MIL]
[1952ROS/WAG] Evaluation/compilation 98.7
[1978ROB/HEM] Evaluation/compilation 76.82 ± 0.84
[1993BAR], [1964HIR] Evaluation/compilation 76.986
*
Value selected in the present evaluation.
CHEMICAL THERMODYNAMICS OF TIN, ISBN 978-92-64-99206-1, © OECD 2012