Figure 9From: Surface complexation model for strontium sorption to amorphous silica and goethiteBorn solvation coefficient (ΔΩr,M) versus the effective electrostatic radii (η/Re,m) for Sr, Ba, Ca and Mg for A: (>SOH)2(>SO-)2_MOH+, B: (>SOH)2(>SO-)2_M2+, and C: >SO-_MOH+. Values for ΔΩr,M are derived from regression slopes in Figure 8.Back to article page