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

A Discussion of selected references
345
Table A-30: Heat capacity data for SnI 2 (cr) from [1974ANI/ZHA].
T/K
ο
C p,m (SnI 2 , cr, T )/J·mol –1·K –1 ο –1
S m (SnI 2 , cr, T )/J·mol
–1·K
12.0000 11.0374 4.4769
16.0000 18.4556 8.6692
20.0000 24.8404 13.4892
24.0000 30.4260 18.5268
30.0000 37.1916 26.0789
40.0000 45.2709 37.9656
60.0000 55.2706 58.3668
80.0000 61.3374 75.1865
100.0000 65.3959 89.3284
120.0000 68.2410 101.5038
140.0000 70.2912 112.1730
170.0000 72.6342 126.0639
200.0000 74.3078 137.9883
230.0000 75.7304 148.4902
260.0000 76.9856 157.8623
273.1500 77.5295 162.7994
298.1500 78.4500 168.4897
310.0000 78.7847 171.5440
[1974MES/BAE]
The dissociation equilibria of phosphoric acid were studied potentiometrically up to
300 °C. The results indicated the absence of significant amounts of polyphosphates up
to 200 °C.
[1974MAT/OGU]
Matsuo et al. [1974MAT/OGU] measured calorimetrically the heat capacity of
SnCl 2 ·2H 2 O crystals from 13 to 300 K. The solid of high purity was prepared from a
slowly cooled melt with a nearly stoichiometric content of water. The overall accuracy
of the measurement is estimated as 1% at 20 K and less than 0.3% above 50 K. The data
are shown in Table A-31.
CHEMICAL THERMODYNAMICS OF TIN, ISBN 978-92-64-99206-1, © OECD 2012