[RASMB] Aluminum centerpiece cleaning recommendation?

[Nikola Wenta]

Dear all,

I want to use Aluminum centerpieces, but they appear to be crusted with
CsCl. Could you please advise on a proper cleaning reagent to remove the
crust? I have so far tried ultrasonications for 30 minutes in baths of
water, EtOH, and 2% Hellmanex...

Your input would be gratefully appreciated!

Best,

Niko
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