Accession Number:

AD0607511

Title:

Vaporization of Compounds and Alloys at High Temperatures. Part 23. Thermochemical Study of the Germanium Oxides Using a Mass Spectrometer - The Dissociation Energy of the Molecule GeO

Descriptive Note:

Technical documentary rept.

Corporate Author:

BRUSSELS UNIV (BELGIUM)

Personal Author(s):

• Drowart, J.
• degreve, F.
• Verhaegen, G.
• Colin, R.

Report Date:

1964-09-01

Pagination or Media Count:

34.0

Abstract:

A mass spectrometric study of the vaporization of the compounds GeO2 hex and GeOam and of the mixture GeO2hex Gec made it possible to establish their mode of vaporization I GeO2hex - GeOg I2O2 II n GeOam - GeOng n1, 2, 3 III n2 GeO2hex n2 Gec - GeOng n 1, 2, 3. The enthalpies of vaporization at 298K are I 121.21.6 kcal mole II, n 1 53.41.0 kcalmole III, n 1 58.21.0 kcalmole. The polymerization energies at 298K are GeO-GeO 44.73.0 kcalmole GeO-GeO-GeO 88.55.0 kcalmole. Total pressures given in the literature were reinterpreted taking the presence of the polymers into account. The heat of formation of the metastable compound GeOam obtained is -59.6 0.7 kcalmole. The dissociation energy of the gaseous molecule GeO is 157.41.5 kcalmole.

Descriptors:

• *GERMANIUM COMPOUNDS
• *THERMOCHEMISTRY
• BELGIUM
• DIOXIDES
• DISPROPORTIONATION
• DISSOCIATION
• ENTHALPY
• HEAT OF FORMATION
• HEAT OF SUBLIMATION
• MASS SPECTROSCOPY
• MONOXIDES
• OXIDES
• POLYMERIZATION
• STABILITY
• VAPOR PRESSURE
• VAPORIZATION

Subject Categories:

• Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE