5.2.5 Scanning electron microscope (SEM) observations Slag samples resulting from long-term (960 h) treatments with the organic solutions were
observed by SEM with respect to presence of weathering features. At the end of the
experiments, grains were dried, coated with Au and placed on conductive tape. Microscopic
observations of slags were conducted using SEM (JEOL JSM-601OA) coupled with an
Energy Dispersive Spectrometer at high vacuum and 15-20 kV working mode.
CHAPTER 5: METAL MOBILIZATION FROM Cu-SLAGS BY SOIL ORGANIC ACIDS