Concentrated Aqueous Sodium Chloride Solutions from 200 to 600°C and to 3000 bar. — Phase Equilibria and PVT‐Data

Publisher Website
Google Scholar
Abstract
The specific volume of aqueous sodium chloride solutions with 6, 10, and 20 weight percent salt was measured from 200°C to 600°C and from 100 bar to 3000 bar. The uncertainty of the data is below 0.5%. Data are given of temperature, pressure, volume and composition at 24 points on the two‐phase boundary surface. About 230 values for the one‐phase region are presented. The critical curve for the binary system runs from 374°C and 220 bar for pure water to 500°C and nearly 600 bar for a solution with 12% salt. The specific volume at this point is 2.0 cm3 g−1. At 600 °C, 3000 bar and 20% salt a volume of 1.163 cm3 g−1 was found. The apparatus and procedure, which uses an autoclave with variable volume and sapphire window is described.

This publication has 13 references indexed in Scilit: