WADD TR 60-782 PART XXIII VAPORIZATION OF COMPOUNDS AND ALLOYS AT HIGH TEMPERATURES PART XXIII. THERMOCHEMICAL STUDY OF THE GERMANIUM OXIDES USING A MASS SPECTROMETER - THE DISSOCIATION ENERGY OF THE MOLECULE GeO

The mass spectromctnc study of the vaporization of the compounds GeO (hex) and GeO(am) and of the mixture GeO (hex) + Ge(c) made it *Z possible to establish their mode of vaporization: Ge02(hex) GeO(g) + 1/20 (I) n GeO(am) (GeO) (g) (n 1. 2. 3) (II) n n/2 GeOJhex) + n/2 Ge(c) (GeO) (g) (n = 1,2,3) (III) c. n The enthalpies of vaporization are AH° (I) 121. 2± 1.6 kcal/mole AH» (II, n=l) = 53.4 ± 1. 0 kcal/mole AH» u(III, n 1) 58. 2 ± 1. 0 kcal/mole 2 90 The polynie rization energies are AHJ (GeO-GcO) = 44. 7 ± 3. 0 kcal/mole AH° (GeO-GeO-GeO) -88. 5 ± 5. 0 kcal/mole 298 Total pressures given in the literature were reinterpreted taking the presence of the polymers into account.