Assertion: uranium | /r/HasProperty | combined with fluorine
Facets:
value: to form uranium hexafluoride
type: PURPOSE
Source sentences:
text: The isotopic separation is accomplished by diffusing uranium [which has been combined with fluorine to form uranium hexafluoride (UF 6 ) gas] through a porous membrane (barrier), and using the different molecular velocities of the two isotopes to achieve separation.