ACID-BASE PROPERTIES OF HYDROGEN PEROXIDEWATER MIXTURES,
Abstract
The dissociation constants of a number of weak acids in hydrogen peroxide-water mixtures have been redetermined. These acids fall into two categories typified by picric acid and acetic acid, respectively. It is shown that the difference between these groups is not due to the formation of peracids, but may be explained in terms of the solvation properties of the undissociated acids resulting in widely different molar free energies of transfer from water to hydrogen peroxide-water mixtures. The solubility of picric acid and the solubility products of a number of salts have been measured over a range of hydrogen peroxide concentrations, and molar free energies of transfer estimated. If certain extrathermodynamic assumptions are accepted, it is shown that all values of free energy of transfer are small except for those of the H3O(+) and O2H(-) ions, and the undissociated acids in the acetic class. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 21, 1964
- Accession Number
- AD0621236
Entities
People
- A. J. Dedman
- D. A. Salter
- D. H. Richards
- P. Flood
- T. J. Lewis