Producing nuclear fusion fuel is banned in the US for being too toxic, but these researchers found an alternative

Lithium-6 is essential for producing nuclear fusion fuel, but isolating it from the much more common isotope, lithium-7, usually requires liquid mercury, which is extremely toxic. Now, researchers have developed a mercury-free method to isolate lithium-6 that is as effective as the conventional method.
http://news.poseidon-us.com/TJfhbH