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

Petr Distler; Miriam Mindova; Jan Sebesta; Bohumir Gruner; Dmytro Bavol; Richard J M Egberink; Willem Verboom; Vasily A Babain; Jan John

doi:10.1021/acsomega.1c03678

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

ACS Omega. 2021 Sep 27;6(40):26416-26427. doi: 10.1021/acsomega.1c03678. eCollection 2021 Oct 12.

Authors

Petr Distler¹, Miriam Mindova¹, Jan Sebesta¹, Bohumir Gruner², Dmytro Bavol², Richard J M Egberink³, Willem Verboom³, Vasily A Babain⁴, Jan John¹

Affiliations

¹ Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, 115 19 Prague, Czech Republic.
² Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, Hlavni 1001, 250 68 Rez Near Prague, Czech Republic.
³ Laboratory of Molecular Nanofabrication, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
⁴ Laboratory of Sensors, ITMO University, Lomonosova St. 9, 191002 Saint Petersburg, Russian Federation.

Abstract

The radiolytic stability of hydrophobic extracting compounds CyMe₄-BTBP and CyMe₄-BTPhen and a hydrophilic masking agent (PhSO₃H)₂-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 (CyMe₄-BTBP) or 200 kGy (CyMe₄-BTPhen). For the (PhSO₃H)₂-BTPhen hydrophilic masking agent, the results showed that the rate of radiolytic degradation was significantly higher in 0.25 M HNO₃ than in 0.5 M HNO₃. For both the hydrophobic and hydrophilic agents, degradation was slower in the presence of both organic and aqueous phases during irradiation.