title: Radiolysis of solvents containing C5-BTBP: identification of degradation products and their dependence on absorbed dose and dose rate.
abstract: Solvents intended for the separation of trivalent actinides from trivalent lanthanides in spent nuclear fuel have been irradiated with gamma-radiation. The solvents initially contained 0.005 M C5-BTBP dissolved in either hexanol or cyclohexanone and they were exposed to doses up to 20 kGy. Identification of degradation products was done using atmospheric pressure chemical ionization-mass spectrometry (APCI-MS). Structures were suggested for a number of degradation products and the relative intensity of the peaks in the MS spectra was estimated. It was clear that the content of the original molecule, C5-BTBP, decreased with dose, while the content of the various degradation products increased. It was also shown that both the choice of diluent and the dose rate (Gy/h) affect the amount of degradation products formed. A degradation scheme was proposed for the radiolytic degradation of C5-BTBP.
authors: Nuclear Chemistry, Department of Chemical and Biological Engineering, Chalmers University, SE-412 96, Gothenburg, Sweden. anna.fermvik@chalmers.se
authors: Anna
authors: A
authors: Fermvik
authors: Laurence
authors: L
authors: Berthon
authors: Christian
authors: C
authors: Ekberg
authors: Sofie
authors: S
authors: Englund
authors: Teodora
authors: T
authors: Retegan
authors: Nicole
authors: N
authors: Zorz