COMPATIBILITY OF CESIUM CHLORIDE AND STRONTIUM FLUORIDE WITH CONTAINMENT MATERIALS

摘要

In the Hanford Waste Management Program Sr and Cs will be recovered from the high-level Purex Acid Waste. Each element will be purified, converted to the appropriate chemical form, and doubly encapsulated for subsequent underwater storage. Strontium fluoride and cesium chloride were the chemical compounds selected for storage.nAn extensive compatibility program was carried out to select the best encapsulating materials. The tests were run using both radioactive and inert compounds. The radioactive tests were carried out at 400°C for periods up to one year. The nonradioactive tests were carried out at 400°C and 800°C with SrF2 and 400°C and 600°C with CsCl. The nonradio¬active tests lasted up to three years.