The Density of Sulphur Dioxide

Abstract

The density of sulphur dioxide has been measured by the same method as that previously described in this Journal and equations of five isothermals are given. Some evidence of adsorption influence appears in the isothermal at − 7.82 °C. The normal density of sulphur dioxide found is 2.9262.

Gas Imperfection. I. Experimental Determination of Second Virial Coefficients for Seven Unsaturated Aliphatic Hydrocarbons.

“…Mixtures containing a high concentration of strong acids also set rapidly (3). The optimum limits for setting have been published (ll), and also the curve for time of set against acid concentration (8).…”

“…Considerable data are available for high pressures, but the low-pressure range has received comparatively little attention. There has been some work done on lowpressure data of state for molecular compounds (e.g., 8,9, 16,22,33) and for the elementary gases utilized in gas thermometry (12). Recent theoretical work (4, 10, 13, 17) in quantum and statistical mechanics has given rise to methods whereby the second virial and its temperature coefficient may be calculated, providing the law of molecular force is known; however, for complex polymolecular compounds the subject is not in an advanced stage.…”

A Helmholtz Energy Equation of State for Sulfur Dioxide

“…Article deviations in density between the equation of state and the data are 0.05% for Cooper and Maass, 16 25 Hellwig, 26 Hirth, 27 and Kang 29 are 1.3%, 0.72%, 0.12%, and 0.16%, respectively. Over the whole region, the pρT data of Hellwig 26 conflict with other data sets, and in the vapor phase region, the pρT data of Hawkins 25 conflict with other data sets.…”

“…11 15 280−428 0.097−6.27 4.9 Cardoso and Sorrentino (1927) 14 12 287−430 0.075−6.84 12. Kang (1960) 29 23 323−430 0.364−7.14 1.9 pρT (Omitting Critical Region) Cooper and Maass (1931) 16 6 3 273−323 2.5 Giauque and Stephenson (1938) 22 12 202−261 0.41 Perlick (1937) 42 23 202−291 1.7 Riedel (1939) 43 10 234−273 0.16 Heat of Vaporization Giauque and Stephenson (1938) 22 1 263 0.091 Mills (1909) 39 11 263−428 4.6 Riedel (1939) 43 5 254−288 0.40 Second Virial Coefficient (AAD in cm 3 ·mol −1 ) Cawood and Patterson (1933) 15 4 303−596 36. Cooper and Maass (1931) 16 5 265−346 8.1 Kang et al (1961) 30 11 283−473 11.…”

“…Summary of Sources of Experimental Data for SO 2 in density between the equation of state and the data are 0.05% for Cooper and Maass,16 1.3% for Hawkins, 25 0.81% for Hellwig, 26 0.10% for Hirth, 27 0.12% for Ihmels et al, 2 0.26% for Kang, 29 0.37% for Kang et al, 30 0.41% for Riedel, 43 and 0.22% for Stewart and Maass…”