# Does CDCl3 also Knock People Out?

I know that chloroform can be used to make people unconscious, but would that also work with deuterated chloroform, $\ce{CDCl3}$?

My instinct is "yes", but I'm not sure I'm willing to try this experiment on anyone.

• My instinct says the same. – Ivan Neretin Sep 18 '15 at 21:11

In almost all respects, deuterium behaves like hydrogen, chemically. You can safely drink pure $\ce{D2O}$ in reasonable quantities (though not enough to replace more than ~25% of the $\ce{H2O}$ of the body). In fact, prokaryotes can continue to grow in ~100% deuterated media, albeit more slowly. It does prevent mitosis in eukaryotes in large quantities, though.