Oxygen-Containing Gas Phase Negative Ions

by E. B. Rudnyi

It has been found that in the vapors of inorganic compounds at high temperatures there are stable negative ions. It allows us to study these ions, to determine their thermodynamic properties (e.g. electron affinity) and to employ them as a tool for traditional thermodynamic measurements.

See also publications.

All the experiments have been done with the magnet mass spectrometer MKh-1303 re-equipped for ion-molecule equilibria method.

Slide Show

• Ion sources for investigation of neutral and charged species
• Negative ions in the vapors of alkali oxy-salts
• Partial pressures of neutral molecules, ions and electrons
• Negative ions in the vapors of the systems: oxide - potassium chromate
• Admixture of potassium chromare is to enhance the electron concentration
• Determining the equilibrium constants
• Thermodynamic properties of negative ions
• Dissociation energies of cluster negative ions
• Multi-charged negative ions do not exist in the gas phase
• Determining the oxygen partial pressure and oxide activity
• Gibbs energy of formation of NiCr2O4

Does sulfate anion SO4(2-) exist?

This is a discussion that took place on USENET in 1993. See also

E. B. Rudnyi, L. N. Sidorov, O. M. Vovk.
Structure of Alkali-Metals Sulfates in Gas and Condensed Phases.
Izv. Vys. Ucheb. Zaved., Khim. Khim. Tekh., 1989, v. 32, N 5, p. 3-12 (in Russian).
Reprint in Russian.