Syntheses, lattice parameters and solid state absorption spectra of the first five transplutonium orthophosphates

Crystal chemistry of the monazite structure

“…146 ifornium and 251 Es einsteinium. [147][148][149] The precipitation of UPO 4 in formic acid media was also reported 150 but appears strongly doubtful regarding to the oxidation states generally stabilized for uranium in presence of phosphates (i.e. IV and VI).…”