“…Despite this problem, however, high-temperature Cr-bearing alloys, such as Hastelloy, are still used in molten uorides because of their acceptable, time-tested, and overall high-temperature properties. 12,13 H 2 O + 2F À 4 O 2À + 2HF (H 2 O + F À 4 OH À + HF) (1)…”