This study investigates the dissolution behavior of
oxide layers containing
radionuclides using
perfluorocarbon (PFC)
emulsion as a reusable medium. Chemicals such as PFC, anionic
surfactant, and H2SO4 are used for preparing the PFC
emulsion, and emulsified using an ultrasonication process. The FTIR results show O-H stretching that is formed by the interaction of the carboxyl group of the anionic
surfactant with the
hydroxyl group of water containing H2SO4, and find that the H2SO4 can be homogeneously dispersed in the PFC-anionic surfactant-H2SO4
emulsion. The dissolution test of the simulated Cr2O3 specimen is conducted using PFC
emulsion containing KMnO4. Through the
weight losses of specimens and Scanning Electron Microscope-Energy Dispersive X-ray Spectrometer (SEM-EDS) analysis, it is confirmed that the Cr2O3 layer on the SUS304 specimen is easily dissolved using PFC
emulsion. During the dissolution of the Cr2O3, it is observed that the dispersed H2SO4-KMnO4 became unstable and separated from PFC
emulsion. Based on these results, the behavior of the PFC
emulsion during the dissolution of the
oxide layer is explained.