Hazard and Precautionary Statements (GHS)

Radium Peroxide Chemical Properties,Usage,Production

Description

Radium peroxide is expected to have the molecular formula of RaO2 and the molecular weight of 258.0242 g/mol. It could be prepared by the reaction of Ra(OH)2 with sodium peroxide in a cold solution:
Ra(OH)2＋Na2O2→RaO2＋2NaOH
The octahydrate is the expected product but there is no record of this compound ever having been prepared because of the lack of interest by industry and academia. RaO2 is expected to have a tetragonal structure but it has not been measured. Whether the Ra²⁺ cation is too large to fit into the Ca2C structure, like the Sr and Ba homologues, remains unknown.