Figure 8
From: Surface complexation model for strontium sorption to amorphous silica and goethite
Log Kθfor (>SOH)2(>SO-)2_MOH+, (>SOH)2(>SO-)2_M2+, >SO-_MOH+, and >SOH...M2+ versus the dielectric constants for rutile (R), goethite (G), γ-alumina (A), quartz (Q), and amorphous silica (AS). Linear regressions are shown as lines of the same color as the data. Values of log Kθr,m for reactions involving Sr and goethite or Sr and amorphous silica are from this study and are shown as open symbols, all other log Kθr,m are from Sverjensky 2006 and are shown as solid symbols. The ''tet'' prefix refers to tetradentate surface sites.