Potassium Oxide, Formula, Chemical Properties, Preparation, Uses

Potassium Oxide

Potassium oxide is an ionic chemical compound which is made up of potassium and oxygen. Its valency has a high tendency to cover the group of alkali metals. Potassium has described as an oxidation state whether the oxygen is described as reduction state. The alkali metals are easily dissolved in the water. The systematic IUPAC name is known as potassium oxide . The chemical or molecular formula of potassium oxide is K2O. It is also known as the potash.

Structural Formula

This is the structural formula of the potassium oxide:

Potassium Oxide

Chemical Formula

The chemical formula of the Potassium oxide is K2O.

Preparation Method

The potassium oxide is prepared by the reaction of potassium peroxide with potassium and gives the formation of results given above. In another method it is synthesized by the potassium nitrate with the metallic potassium to form the potassium oxide. Because it reacts with the water violently and easily absorbed. It has contributed the 4 oxide ions to the coordinated of potassium metals.

Learn More:   Magnesium Hydroxide, Formula, Preparation Method, Chemical Properties

K2O2   + 2K → 2K2O

Physical Properties

Melting point 740C
Boiling point 300C
Molecular weight 94.2g/mol
Density 2.35g/cm3
Solubility in water Reacts forming KOH
Odor odourless
Crystal structure Antifluorite cubic
Solubility Soluble in diethyl ether
Appearance Pale yellow solid

Chemical Properties

The potassium oxide has a low melting and boiling point. It reacts to form the KOH. It looks like a pale yellow solid in the appearance. It is soluble in diethyl ether. It is odourless and antifluorite in structure. It has a low density and moderate molar mass.


Potassium oxide is used for farming fertilizer. It is also making for the glass and soaps. It is widely treatment in medical purposes. Potassium oxide is used in the treatment of actinomycosis and actinobacillosis. It cures the fungal infections such as zygomycetes and animal related diseases.


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