Figure 3
(a) Glasses with higher Fe2O3 contents leached less Cu on each sampling day, indicating greater aqueous chemical durability. More Cu was leached at lower Fe2O3 contents even if there was less total CuO in the composition (e.g., light purple squares with 41.0 mol% CuO compared to dark purple diamonds with 41.6 mol% CuO). (b) Glass #4 (1.8 ± 0.3 log kill) showed low AM efficacy (< 3 log kill) despite having a comparable or greater amount of total CuO than glasses #5 and #6. Day 1 data is shown as the most comparable leach data to the conditions of the modified U.S. E.P.A. test. Glass #s are labelled above each composition. Data plotted is renormalized to exclude SiO2.
