Ultrafine copper powder

Extra pure copper (Cu) 99.999% (country of origin Russia)
Copper powder.
Description: ultrafine copper powder (PMU). Non-toxic and non-radioactive. The powder structure is not layered. The shape of the particles is spherical.
Specific radioactivity not more than 37.6 plus or minus 3.7 Bq/kg;
isotope content, % AT: Isotope Cu 63: 69.09% plus or minus 0.05;
                                                 Isotope Cu 65: 30.91% plus or minus 0.03.
chemical purity - for the main element is not lower than 99.999%
The amount of impurity is not more than 0.001%;
quality: the total content of regulated impurities in a batch of copper powder (Mg, Al, Ti, Fe, Ni, Zn, Mo, Cd, Sb) is not more than 0.001% by weight.
Ultrafine copper powder is manufactured according to the requirement 
TY 1793-001-50316079-2004 "Ultrafine copper powder of the PMU brand".
Quality control: laboratory of JSC GIREDMET (Moscow) - quality certificate
Product packaging: the powder is stabilized in argon medium, PET ampoules of 2,000 gr. in a plastic box sized 60*40*25 . The net weight of one box is 40 kg.
Price: 159 euros per kilogram.