Potassium hydroxide

Jump to: navigation, search


White deliquescent solid. Potassium hydroxide is a strongly caustic material that has long been used in the manufacture of soap. It is used as a mordant in dyeing wood and as a component in paint removers, and printing inks. Potassium hydroxide is also used as an etchant in photoengraving and lithography.

Synonyms and Related Terms

caustic potash; potassium hydrate; pottassium lye; potassa

Other Properties

Soluble in water, ethanol, glycerol. Slightly soluble in ether. Absorbs water and carbon dioxide from the air.

Composition KOH
CAS 1310-58-3
Melting Point 405
Density 2.044
Molecular Weight mol. wt. = 56.1
Boiling Point 1324

Hazards and Safety

Toxic by ingestion and inhalation. Strongly caustic and corrosive to tissue. Deleterious to wool, leather, aluminum, lead, tin and zinc.

International Chemical Safety Card

Retrieved from "http://cameo.mfa.org/index.php?title=Potassium_hydroxide&oldid=54643"