The kinetics of the dissolution of monoclinic pyrrhotite in aqueous acidic solutions

Anoxic dissolution of troilite in acidic media

“…(14) and (20), keeping in mind our initial assumption that {H + } = [H + ], one obtain the integral form of iron diffusion rate law:…”

“…Only a few studies were dedicated to troilite [10,19] and pyrrhotite dissolution [8][9][10][19][20][21][22] and their results are not always in good agreement. Unlike iron disulfides, which dissolve only in presence of an oxidizing agent, troilite and pyrrhotite can undergo both oxidative and nonoxidative dissolution processes [23].…”