The Role of Surface Coordination in the Dissolution of δ-Al2O3 in Dilute Acids

Authors

  • Gerhard Furrer Institute for Water Resources and Water Pollution Control (EAWAG) Swiss Federal Institute of Technology (ETH) Zurich
  • Werner Stumm Institute for Water Resources and Water Pollution Control (EAWAG) Swiss Federal Institute of Technology (ETH) Zurich

DOI:

https://doi.org/10.2533/chimia.1983.338

Abstract

Chemical processes at the hydrous-oxide solution interface – protonation of surface OH-groups and surface coordination with ligands (anions) – are important for understanding the dissolution of solid oxide phases. It is shown that the dissolution rate of δ-Al2O3 in dilute acids (pH 2.5-6) depends directly on the extent of surface protonation and on the concentration of surface complexes formed in the presence of oxalate, salicylate, citrate and benzoate.

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Published

1983-09-30

Issue

Vol. 37 No. 9 (1983): Forschung/Research

Section

Kurze Mitteilungen

License

Copyright (c) 1983 Gerhard Furrer

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
G. Furrer, W. Stumm, Chimia 1983, 37, 338, DOI: 10.2533/chimia.1983.338.