Journal of Solution Chemistry

, Volume 21, Issue 8, pp 745–760

Metal oxide solubility behavior in high temperature aqueous solutions

  • S. E. Ziemniak

DOI: 10.1007/BF00651507

Cite this article as:
Ziemniak, S.E. J Solution Chem (1992) 21: 745. doi:10.1007/BF00651507


The solubility behavior of metal oxides in sub- and super-critical aqueous solutions is quantified using thermodynamic concepts. Three physicochemical phenomena are discussed: (1) metal oxide solid phase stability; (2) metal oxide dissolution reaction equilibria; and (3) metal ion hydroxocomplex formation. Thermochemical properties of metal oxides/ions representative of the most common constituents of construction metal alloys, i.e., elements having atomic numbers between 22 (Ti) and 30 (Zn), are summarized on the basis of metal oxide solubility studies conducted at General Electric and elsewhere.

Key words

Aqueous solutionsmetal ion hydrolysishydroxocomplexesthermodynamicsequilibrium constantoxidescorrosionpressurized waterhydrothermal solutionssupercritical fluidsexpansivity coefficient

Copyright information

© Plenum Publishing Corporation 1992

Authors and Affiliations

  • S. E. Ziemniak
    • 1
  1. 1.Knolls Atomic Power LaboratoryGeneral Electric CompanySchenectady