The enthalpy and entropy of sublimation of N-ethylthiourea were obtained from the temperature dependence of its vapour pressure measured by both the torsion effusion and the Knudsen effusion method in the temperature range 360 380 K. The compound undergoes no solid-to-solid phase transition or decomposition below 380 K. The pressure against reciprocal temperature resulted in lg(p, kPa) = (13.40+-0.27)-(6067+-102) /T(K). The molar sublimation enthalpy and entropy at the mid interval temperature were subHm(370 K) = (116.1+-2.0) kJ mol-1 and subSm(370 K) = (218.0+-5.2) J mol-1 K-1, respectively. The same quantities derived at 298.15K were (118.8+-2.1) kJ mol-1 and (226.1+-5.5) J mol-1 K-1, respectively.
Compounds
#
Formula
Name
1
C3H8N2S
ethylthiourea
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.