POTASSIUM HYDROXIDE - (1310-58-3)

Introduction

Name: potassium hydroxide
* IUPAC
CAS Number: 1310-58-3
Chemical Formula: KOH
Molar Mass: 56.10564 g
Mass Percent: K 69.686 %; O 28.516 %; H 1.7965 % 

Classification

• inorganic

Uses/Function

• "It is used in the preparation of some soaps and in making other potassium compounds." 1

Bonding

Thermochemistry

ΔHf° (s): -101.78 kcal/mol 2 = -425.85 kJ/mol
S° (s): 18.85 cal/(mol•K) 3 = 78.87 J/(mol•K)
ΔGf° (s): -90.6 kcal/mol 4 = -379.07 kJ/mol

Reactions

Safety Information

NFPA 704 Ratings:
Health: 3 - Short exposure could cause serious temporary or moderate residual injury.
Flammability: 0 - Will not burn.
Reactivity: 1 - Normally stable, but can become unstable at elevated temperatures and pressures.
Special Hazard: COR -

For More Information

Sources

(1) - Brownlee, Raymond B., Fuller, Robert W., and Whitsit, Jesse E. Elements of Chemistry; Allyn and Bacon: Boston, Massachusetts, 1959; p 185.
(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) - T > -239.660056657224
(6) - T > -692.288618894124
(7) - T > -692.288618894122
(8) - T > 20.972735443922
(9) - T > -150.617427097223
(10) - T > 195.606936416186
(11) - T > -8753.50701402805
(12) - T < 1183.23387236455