Saturated liquid and vapor densities from the triple point to the critical points are reported. These data were derived from experimental PVT isochores and an accurate vapor pressure equation. The critical point parameters were estimated by fitting an equation to all experimental data within 20percnt; of the critical temperature. Separate equations, each constrained to the new critical point parameters, were fitted to the saturated liquid and vapor densities. Latent heats of vaporization were calculated from the Clapeyron equation and compared to other published values. A vapor pressure equation based on the IPTS 1968 temperature scale is reported.
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