Stability of Different BTBP and BTPhen Extracting or Masking Compounds against γ Radiation.

The radiolytic stability of hydrophobic extracting compounds CyMe-BTBP and CyMe-BTPhen and a hydrophilic masking agent (PhSOH)-BTPhen, widely employed for trivalent minor actinoid and lanthanoid separation, against γ radiation was tested. Even though the solvent with a promising fluorinated diluent BK-1 provides better extraction properties compared to octan-1-ol, its radiation stability is much lower, and no extraction was observed already after an absorbed dose of 150 kGy (CyMe-BTBP) or 200 kGy (CyMe-BTPhen). For the (PhSOH)-BTPhen hydrophilic masking agent, the results showed that the rate of radiolytic degradation was significantly higher in 0.