Potential - pH diagrams at temperatures above 298.16 degrees K, Part 2 - potential - pH diagrams of water for the temperature range 298.16 - 573.16 degrees K

Lowson, RT

Potential - pH diagrams at temperatures above 298.16 degrees K, Part 2 - potential - pH diagrams of water for the temperature range 298.16 - 573.16 degrees K

Files

AAEC-E-219.pdf(717.23 KB)

Date

1972-03

Authors

Lowson, RT

Publisher

Australian Atomic Energy Commission

Abstract

The Potential — pH diagrams are presented for water over the temperature range 298.16-573.16º K. The diagrams are discussed with reference to variation of the thermodynamic stability of species H20(l) , H +, 0H-, H-, H202, H0-2, H1, H2, 02, 0S and H20(g) with temperature. The diagrams demonstrate the variation of Kw and the neutral point of water with temperature. The maximum for Kw was —11.86 at 473.16º K (200ºC) with a corresponding minimum pH value of 5.93.

Keywords

pH value, Water, Temperature monitoring, Thermodynamic properties

Citation

Lowson, R. T. (1972). Potential - pH diagrams at temperatures above 298.16 degrees K, Part 2 - potential - pH diagrams of water for the temperature range 298.16 - 573.16 degrees K. (AAEC/E219 Part 2). Lucas Heights, NSW: Australian Atomic Energy Commission.