Rubidium peroxide

Rubidium peroxide
Names
	IUPAC name Rubidium peroxide
Identifiers
CAS Number	23611-30-5;
3D model (JSmol)	Interactive image;
ChemSpider	10737150;
	InChI InChI=1S/O2.2Rb/c1-2;;/q-2;2*+1 Key: ZMNCGAAXQANUDM-UHFFFAOYSA-N;
	SMILES [Rb+].[Rb+].[O-][O-];
Properties
Chemical formula	O2Rb2
Molar mass	202.934 g·mol−1
Appearance	colourless solid
Density	3.80 g·cm−3
Melting point	570 °C
Solubility in water	reacts
Related compounds
Other anions	Rubidium oxide; Rubidium superoxide
Other cations	Lithium peroxide; Sodium peroxide; Potassium peroxide; Caesium peroxide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Rubidium peroxide is rubidium's peroxide with the chemical formula Rb₂O₂.

Production

Rubidium peroxide can be produced by rapidly oxidizing rubidium in liquid ammonia at −50°C.^[1]

\mathrm {2\ Rb+O_{2}\ {\xrightarrow {-50\;^{\circ }{\text{C}}}}\ Rb_{2}O_{2}}

It can also be produced by pyrolysis of rubidium superoxide in vacuum.^[1]

\mathrm {2\ RbO_{2}\ {\xrightarrow {290\;^{\circ }{\text{C}}}}\ Rb_{2}O_{2}+O_{2}}

Rubidium peroxide is a colourless to light yellow solid with the orthorhombic crystal structure.^[1]

^ ^a ^b ^c ^d Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3, S. 955.
^ ^a ^b Ans, Jean d'; Lax, Ellen (December 1997). Taschenbuch für Chemiker und Physiker. p. 690. ISBN 3540600353.
^ W. M. Haynes; David R. Lide; Thomas J. Bruno (2012), CRC Handbook of Chemistry and Physics 2012–2013 (in German), CRC Press, pp. 4–85, ISBN 978-1439880494{{citation}}: CS1 maint: date and year (link)