CESIUM OXIDE - (20281-00-9)

Introduction

Name: cesium oxide; caesium oxide
* IUPAC
CAS Number: 20281-00-9
Chemical Formula: Cs2O
Molar Mass: 281.8103 g
Mass Percent: Cs 94.322 %; O 5.6773 % 

Classification

• inorganic

Physical Properties

Melting Point:*
490°C 1 = 763.15 K = 914°F


* - 1 atm pressure

Bonding

Bonding: ionic
Ionic Character: 80.30 %

Thermochemistry

ΔHf° (g): -22 kcal/mol 2 = -92.05 kJ/mol
S° (g): 76 cal/(mol•K) 3 = 317.98 J/(mol•K)
ΔGf° (g): -25 kcal/mol 4 = -104.60 kJ/mol

For More Information

Sources

(1) - Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL, 2003; p 4-51.
(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.