The hydrolysis of nantokite to form cuprite could be a reaction step in the progression of bronze disease
on cupreous objects d’art. In this paper, this transformation is visualized for the first time using a timeresolved
synchrotron X-ray diffraction experiment. Complete conversion of nantokite to cuprite was
observed on a nantokite patina over 5 h in water using time-resolved synchrotron X-ray diffraction