Sulfur dioxide thermodynamic properties

Physical Properties. Sulfuryl chloride [7791-25-5] SO2CI2, is a colorless to light yellow Hquid with a pungent odor. Physical and thermodynamic properties are Hsted ia Table 7. Sulfuryl chloride dissolves sulfur dioxide, bromine, iodine, and ferric chloride. Various quaternary alkyl ammonium salts dissolve ia sulfuryl chloride to produce highly conductive solutions. Sulfuryl chloride is miscible with acetic acid and ether but not with hexane (193,194). 

Physical Properties. Sulfur dioxide [7446-09-5] SO2, is a colorless gas with a characteristic pungent, choking odor. Its physical and thermodynamic properties ate Hsted in Table 8. Heat capacity, vapor pressure, heat of vaporization, density, surface tension, viscosity, thermal conductivity, heat of formation, and free energy of formation as functions of temperature ate available (213), as is a detailed discussion of the sulfur dioxide—water system (215). 

Table 8. Physical and Thermodynamic Properties of Sulfur Dioxide...

The thermodynamic properties of sulfur trioxide, and of the oxidation reaction of sulfur dioxide are summarized in Tables 3 and 4, respectively. Thermodynamic data from Reference 49 are beheved to be more accurate than those of Reference 48 at temperatures below about 435°C. 

Taken from Thermodynamic Properties of Sulfur Dioxide, by D. F. Rynning and C. O. Hurd, Transactions of the American Institute of Chemical Engineers, XLI. 

Polt, A. Maurer, G. (1992). The Bender equation of state for describing thermodynamic properties of krypton, neon, fluorine, sulfur dioxide and water over a wide range of state. Fluid Phase Equil, 73,27-38. 

A survey was made of more than 100 materials for possible use as condensable substance in the insulation space of a transfer line. Most were readily eliminated from consideration because ofundesirable thermodynamic properties, lack of availability, toxic properties, or high cost. Three materials were deemed potentially suitable for this use carbon dioxide (CO2), sulfur dioxide (SO2), and nitric oxide (NO). Carbon dioxide was chosen because it is more readily available in a rather pure form, it is cheaper than the other two, and it is not a suffocating gas like sulfur dioxide. 

Nitta, T. Itami, J. Katayama, T. A study of the thermodynamic properties of sulfur dioxide - ethanol and sulfur dioxide - diethyl ether systems from measurements of vapor pressure and UV-specfrum. J. Chem. Eng. Jpn. 1973, 6, 303-309. 

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