Hazard and Precautionary Statements (GHS)

Radium Selenite Chemical Properties,Usage,Production

Description

Radium selenite has the molecular formula of RaSeO3 and the molecular weight of 352.9832 g/mol. It can be prepared by the addition of sodium selenite to a solution of radium chloride:
RaCl2(aq)+ Na2SeO3(aq) ? RaSeO3(solid)
It can also be prepared by treating a solution of radium chloride with selenous acid and adding sodium carbonate to start precipitation. There is no record of a hydrate. RaSeO3 has been administered in the past as a irradiative treatment of certain tumors but there is no substantive evidence concerning its efficacy in this regard. RaSeO3 has no CAS number and is not available commercially.