Fig. 4 Oxalate-promoted (5 mM) dissolution of goethite in the presence of 1 mM chromate and arsenate and a background electrolyte concentation of 0.10 M NaNO3: (a) pH 3, (b) pH 4, (c) pH 5 and (d) pH 6
Fig. 4 Oxalate-promoted (5 mM) dissolution of goethite in the presence of 1 mM chromate and arsenate and a background electrolyte concentation of 0.10 M NaNO3: (a) pH 3, (b) pH 4, (c) pH 5 and (d) pH 6