Radium selanate has the molecular formula of
RaSeO4 and the molecular weight of 368.9826 g/mol. It
can be prepared by reacting sodium selenate with
radium chloride in solution:
RaCl2(aq)+ Na2SeO4(aq) ? RaSeO4+ 2NaCl(aq)
Radiumselenate is expectedtobe insoluble inwater but
there is no record of this compound ever having been
prepared. It had no CAS number. There is no demand
for this compound and it is not available commercially.