Óxido de potasio

Óxido de potasio
Potassium oxide
IUPAC name	Potassium oxide
Other names	Potassium monoxide
Identifiers
CAS number	12136-45-7
UN number	2033
Properties
Molecular formula	K2O
Molar mass	94.20 g/mol
Appearance	pale yellow solid
Density	2.35 g/cm3
Melting point	>490 °C decomp.
Solubility in water	Decomposes violently, forming KOH
Structure
Crystal structure	Antifluorite (cubic), cF12
Space group	Fm3m, No. 225
Coordination geometry	Tetrahedral (K+); cubic (O2–)
Hazards
MSDS	ICSC 0769
EU Index	Not listed
Main hazards	Corrosive, reacts violently with water
Flash point	Non-flammable
Related compounds
Other anions	Potassium sulfide
Other cations	Lithium oxide Sodium oxide Rubidium oxide Caesium oxide
Related potassium oxides	Potassium peroxide Potassium superoxide
Related compounds	Potassium hydroxide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references