RUTHENIUM TETRAOXIDE - (20427-56-9)

Introduction

Name: ruthenium tetraoxide; ruthenium(VIII) oxide
* IUPAC
CAS Number: 20427-56-9
Chemical Formula: RuO4
Molar Mass: 165.0676 g
Mass Percent: Ru 61.229 %; O 38.770 % 

Classification

• inorganic

Bonding

Bonding: polar covalent
Ionic Character: 37.58 %

Thermochemistry

ΔHf° (s): -57.2 kcal/mol 1 = -239.32 kJ/mol
ΔHf° (ℓ): -54.6 kcal/mol 1 = -228.45 kJ/mol
ΔHf° (g): -44.0 kcal/mol 1 = -184.10 kJ/mol
S° (s): 35.0 cal/(mol•K) 2 = 146.44 J/(mol•K)
S° (ℓ): 43.8 cal/(mol•K) 2 = 183.26 J/(mol•K)
S° (g): 69.3 cal/(mol•K) 2 = 289.95 J/(mol•K)
ΔGf° (s): -36.4 kcal/mol 3 = -152.30 kJ/mol
ΔGf° (ℓ): -36.4 kcal/mol 3 = -152.30 kJ/mol
ΔGf° (g): -33.4 kcal/mol 3 = -139.75 kJ/mol

For More Information

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.