Sol-gel methods and Arc melting of pure uranium under nitrogen atmosphere can also be used.

The allied program decided to use a gas phase extraction to obtain the pure uranium necessary for an atomic detonation.

You ought to get a medal of pure uranium for that one, skipper.

The staff has a rod made of pure uranium.

"The mountains that we just flew over must be made of pure uranium."

Peierls attempted to derive the critical mass of a block of pure uranium.

Yellow cake, even pure uranium, has almost no radioactivity.

The uranium concentrations within the solution are very important for the efficient separation of pure uranium from the acid.

Plant officials said they believed that the uranium had leaked years ago from a building where pure uranium is dissolved using an acid.

At the time, there was a limited source of pure uranium.