Isotopen copper powder 99,999%

Sell Isotopen Copper Powder, purity 99,999%messured by IGAS- Germany and other institut: with ICP/MS and ICP/CES,  the chemical purity based on the determined impurities :

Mg, AI, Ti, Cr, Fe, Zn, Mo, Cd, Sb,  is 99,999%
The isotopie composition is that of natural copper
   63                                      65      Cu69,1% +/_0,05%  and    Cu 30,9% +/_0,05%
Material NOT RADIOACTIVE  ISOTOPEN Copper Powder, stored in Germany. Seller agrees to issue new scientific certificate  price ( 60 000 Euro ) debited from  purchase price Copper Powder 9292 kg ; direct to mandat