LANTHANUM OXIDE - (1312-81-8)

Introduction

Name: lanthanum oxide
* IUPAC
CAS Number: 1312-81-8
Chemical Formula: La2O3
Molar Mass: 325.8092 g
Mass Percent: La 85.268 %; O 14.731 % 

Classification

• inorganic

Uses/Function

• "Basic oxides such as La2O3 and mixtures like Li2O (5% by weight) - MgO have important potential as catalysts in the oxidative coupling of methane." 1

Bonding

Bonding: ionic
Ionic Character: 70.91 %

Thermochemistry

ΔHf° (s): -428.7 kcal/mol 2 = -1,793.68 kJ/mol
S° (s): 30.43 cal/(mol•K) 3 = 127.32 J/(mol•K)
ΔGf° (s): -407.7 kcal/mol 4 = -1,705.82 kJ/mol

For More Information

Sources

(1) - (a) Swaddle, T.W. Inorganic Chemistry; Academic Press: San Diego, 1997; p 123. (b) Lunsford, J.H. Angew. Chem. Int. Ed. Engl. 34, 970-980 (1995).
(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.
(4) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.