Potassium_ozonide
Potassium ozonide
Chemical compound
Potassium ozonide is an oxygen rich compound of potassium. It is an ozonide, meaning it contains the ozonide anion (O3−). In polarized light, it shows pleochroism.[1] Hybrid functional calculations have predicted the compound is an insulator with a band gap of 3.0 eV, and has magnetic behavior which departs from the Curie–Weiss law.[6]
The compound can be created by reacting ozone with potassium hydroxide, but the yield is quite low, only 5-10%.[7]
- 6 KOH + 4 O3 → 4 KO3 + 2 KOH(H2O) + O2
The compound is metastable, and will decompose to potassium superoxide and oxygen, especially if there is any water in the atmosphere. Long-term storage in very dry atmosphere is possible below around 0 °C.[2]
- KO3 → KO2 + ½ O2
This compound reacts with water to form potassium hydroxide and potassium superoxide.[4]