Chemistry of gaseous lower halides of uranium. Technical progress report, 1 April 1980-1 April 1981

In this program, we are developing chemical techniques for generating the desired lower halide species, and are then utilizing mass spectrometric and effusion pressure techniques to study chemical reaction equilibria involving these species. From careful equilibrium measurements made over an extended temperature range, one can derive standard enthalpies of formation, entropies, and bond dissociation energies. We report here the results obtained in the second phase of the program, which is concerned with the uranium fluorides, chlorides, and bromides. 3 refs., 2 tabs