NIOBIUM(II) OXIDE - (12034-57-0)

introduction

prénom: niobium(II) oxide
* IUPAC
Numero CAS: 12034-57-0
Formule chimique: NbO
Masse molaire: 108.90578 g
Pourcentage de masse: Nb 85.308 %; O 14.691 % 

Classification

Bonding

Bonding: ionic
Ionic Character: 55.76 %

Thermochimie

ΔHf° (s): -97.0 kcal/mol 1 = -405.85 kJ/mol
ΔHf° (g): 51 kcal/mol 1 = 213.38 kJ/mol
S° (s): 11.5 cal/(mol•K) 2 = 48.12 J/(mol•K)
S° (g): 57.09 cal/(mol•K) 2 = 238.86 J/(mol•K)
ΔGf° (s): -90.5 kcal/mol 3 = -378.65 kJ/mol
ΔGf° (g): 44 kcal/mol 3 = 184.10 kJ/mol

Pour plus d'informations

Sources

(1) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(2) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(3) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.