The solubilities of sulfuryl fluoride (SO2F2) in propylene carbonate (PC), tributyl phosphate (TBP) and N-methylpyrrolidone (NMP) was measured by isochoric saturation method at the pressure of up to 600 kPa and temperatures ranging from (293.15 to 313.15) K. Results showed that SO2F2 solubility increased with increasing pressure and decreased with increasing temperature in the three solvents, and the dissolution of SO2F2 in the solvents was a physical process. Moreover, Henry's law constants and thermodynamic properties such as standard Gibbs free energy, enthalpy, and entropy changes of SO2F2 solvation were further calculated according to the experimental solubility data. The solubility of SO2F2 in these three solvents followed the order of TBP greater than PC greater than NMP. The results illustrated that TBP possessed the potentiality to capture SO2F2 among the present absorbents due to the relatively large solubility and low absorption enthalpy for SO2F2.
Compounds
#
Formula
Name
1
F2O2S
sulfuryl difluoride
2
C4H6O3
4-methyl-1,3-dioxolan-2-one
3
C12H27O4P
tributyl phosphate
4
C5H9NO
N-methylpyrrolidone
5
CO2
carbon dioxide
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.