Fig. 2From: Effects of common groundwater ions on chromate removal by magnetite: importance of chromate adsorptionAqueous speciation diagrams of 0.5 mM Cr(VI)O4 2− over pH 3–12 using Visual MINTEQ in the following background media a and b 0.01 and 0.1 M NaNO3, respectively. c and d 0.0016 and 0.016 M Na2SO4, respectivelyBack to article page