The Volatility and Vapor Pressure of Nine Organic Arsines¹

Parameters for Evaluation of the Fate, Transport, and Environmental Impacts of Chemical Agents in Marine Environments

“…One study reports that the vapor pressure of 2-chlorovinylarsonous dichloride obeys eq 17 over the temperature range from 0 to 60°C 194 log p(Torr) ) 9.1000 -2786.6…”

“…Using vapor pressure and reducedboilingpointdatafromseveralotherstudies 190,191,[194][195][196][197] gives eq 18 for the temperature range from 25 to 200°C…”

“…The density of 2-chlorovinylarsonous dichloride is reported as 1.888 g/mL at 20 °C193 and 1.8799 194 and 1.8793 g/mL at 25 °C. 190 These data are insufficient to allow precise extrapolation to higher or lower temperatures, although it is virtually certain that Lewisite will have a density significantly greater than that of water at any temperature encountered in the marine environment.…”

“…One study reports that the vapor pressure of 2-chlorovinylarsonous dichloride obeys eq 17 over the temperature range from 0 to 60 °C194 log p(Torr) ) 9.1000 -2786.6 T(K) (17) This study does not report individual data points and cannot be combined with other data sets. Using vapor pressure and reducedboilingpointdatafromseveralotherstudies 190,191,[194][195][196][197] gives eq 18 for the temperature range from 25 to 200 °C log p(Torr) ) 7.9((0.5) -2400(( 200)…”

“…One study reports that the vapor pressure of 2-chlorovinylarsonous dichloride obeys eq over the temperature range from 0 to 60 °C This study does not report individual data points and cannot be combined with other data sets. Using vapor pressure and reduced boiling point data from several other studies ,,− gives eq for the temperature range from 25 to 200 °C This expression is plotted with the data in Figure ; these independent data sets correlate well. Moreover, the two independently derived expressions agree to within a factor of 1.5 or better between 25 and 60 °C, where the two data sets overlap.…”