Acetate from acetic acid solution easily bonds with the CuO to form verdigris which precipitates onto the surface when the water evaporates. Iron can protect copper; the verdigris can react with an ...

The stoichiometry of acetate:Fe(II) formed (1:7.6) closely matched the expected ratio of 1:8 for acetate-dependent ferric iron reduction. Acetate was degraded to a smaller extent in goethite (65% ...