🚀 go-pugleaf

    I have some chips of Calcium that are badly oxidized.  I am wondering
if there is a simple way to clean them.  I put them in a plastic bottle
with N2 gas and sealed it for storage.  I noticed that if I shake the 
bottle a lot, the oxide rubs off a bit.  I suppose I could put glass chips
in the bottle and shake for a day.  Then I could take the Ca chips out in
a glove box.
    Any better Ideas?  Also, how can I store things like Ca, Na, K, and Rb
without oil?  Is Carbon-tetrachloride better?  I need to put the chips in
a high vacuum system and I don't want the oil around.  I assume things like
C-tet evaporate more easily.
							Danube