HAFNIUM BORIDE - (12007-23-7)

Introduction

Name: hafnium boride
* IUPAC
CAS Number: 12007-23-7
Chemical Formula: HfB2
Molar Mass: 200.112 g
Mass Percent: Hf 89.195 %; B 10.804 % 

Classification

• inorganic

Bonding

Bonding: polar covalent
Ionic Character: 22.42 %

Thermochemistry

ΔHf° (s): -80.3 kcal/mol 1 = -335.98 kJ/mol
S° (s): 10.2 cal/(mol•K) 2 = 42.68 J/(mol•K)
ΔGf° (s): -79.4 kcal/mol 3 = -332.21 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.