“…The major inorganics in the simulated waste were sodium nitrate, sodium nitrite, sodium aluminate, sodium phosphate, and sodium hydroxide. Although recent analyses by Campbell et al (I 994) and studies by Delegard (1 987) and Camaioni et al (1 994;1995) indicate that HEDTA originally present in 101 SY waste has degraded to a wide variety of organic species, we chose HEDTA to represent the organic waste constituents since it was originally present in the waste and to provide consistency with our earlier studies to assess the chemical compatibility of pump oil and 101 SY waste. We dried our simulant at 50°C using the building vacuum of about 120 torr for 2 to 3 weeks and ground it using a mortar and pestle to provide a high-surface-area material to enhance reactivity.…”