Rubidium peroxide

{{Chembox

| ImageFile = Rb2O2.png

| IUPACName = Rubidium peroxide

| Section1={{Chembox Identifiers

| CASNo = 23611-30-5

| ChemSpiderID = 10737150

| StdInChI=1S/O2.2Rb/c1-2;;/q-2;2*+1

| StdInChIKey=ZMNCGAAXQANUDM-UHFFFAOYSA-N

| SMILES=[Rb+].[Rb+].[O-][O-]

}}

| Section2={{Chembox Properties

|Rb=2|O=2

| Appearance = colourless solid

| Density = 3.80 g·cm⁻³

| MeltingPt = 570 °C{{cite book|isbn=3540600353| page= 690 | title= Taschenbuch für Chemiker und Physiker | last1= Ans | first1= Jean d' | last2= Lax | first2= Ellen | date= December 1997 }}

| BoilingPt=

| Solubility = reacts{{citation|author1=W. M. Haynes|author2=David R. Lide|author3=Thomas J. Bruno|title=CRC Handbook of Chemistry and Physics 2012–2013|publisher=CRC Press|year=2012|at=pp. 4–85|isbn=978-1439880494|language=German|url=https://books.google.com/books?id=-BzP7Rkl7WkC

}}

|Section8={{Chembox Related

| OtherAnions=Rubidium oxide
Rubidium superoxide

|OtherCations=Lithium peroxide
Sodium peroxide
Potassium peroxide
Caesium peroxide

}}

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.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.

:: $\mathrm{2\ Rb + O_2 \ \xrightarrow{-50\;^\circ\text{C}}\ Rb_2O_2 }$

It can also be produced by pyrolysis of rubidium superoxide in vacuum.

:: $\mathrm{2\ RbO_2 \ \xrightarrow{290\;^\circ\text{C}}\ Rb_2O_2 + O_2}$

Properties

Rubidium peroxide is a colourless to light yellow solid with the orthorhombic crystal structure.

References

Category:Rubidium compounds

Category:Peroxides