IRON(II) OXIDE - (1345-25-1)

Introduction

Name: iron(II) oxide; ferrous oxide
* IUPAC
CAS Number: 1345-25-1
Chemical Formula: FeO
Molar Mass: 71.8444 g
Mass Percent: Fe 77.730 %; O 22.269 % 

Classification

• inorganic

Uses/Function

• "Iron(II) oxide has three primary uses. First, it has long been used as a dye or pigment in pottery, glazes, and glasses, especially in the green, heat-absorbing glass used in buildings, automobiles, and other applications. The compound is also used as a raw material in the production of steel. Finally, iron(II) oxide is used as a catalyst in a number of industrial and chemical operations.
Inhalation of iron(II) oxide fumes or dust is considered a hazard and can cause throat and nasal irritation. High levels of exposure may lead to a condition known as metal fume fever, a workplace exposure illness that causes flu-like symptoms. Continued exposure at high levels can have more serious effects, including a disease known as siderosis, an inflammation of the lungs that is accompanied by pneumonia-like symptoms." 1

Bonding

Bonding: polar covalent
Ionic Character: 48.79 %

Thermochemistry

ΔHf° (s): -65.0 kcal/mol 2 = -271.96 kJ/mol
S° (s): 14.52 cal/(mol•K) 3 = 60.75 J/(mol•K)
ΔGf° (s): -60.10 kcal/mol 4 = -251.46 kJ/mol

Reactions

For More Information

Sources

(1) - Schlager, Neil, Weisblatt, Jayne, Newton, David E., and Montney, Charles B. Chemical Compounds Vol. 2; Thomson-Gale: Detroit, MI, 2006; pp 367-8.
(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.
(5) - Zumdahl, Steven and Zumdahl, Susan A. Chemistry 9th ed.; Brooks/Cole: Belmont, CA, 2014; p 133.
(6) - Zumdahl, Steven and Zumdahl, Susan A. Chemistry 9th ed.; Brooks/Cole: Belmont, CA, 2014; p 131.