99.9%: Ta;0.05%, Ti;0.001%, W;0.003%, Mo;0.002%, Cr;0.002%, Mn;0.002%, Fe;0.005%, Ni;0.005%, Cu;0.002%, Al;0.002%, Si;0.005%, Pb;0.002%, Sn;0.002%, P;0.01%, F;0.1%, S;0.01%

99.8%: Ta;0.08%, Ti;0.002%, W;0.005%, Mo;0.003%, Cr;0.003%, Mn;0.005%, Fe;0.02%, Ni;0.01%, Cu;0.005%, Al;0.002%, Si;0.01%, Pb;0.002%, Sn;0.002%, P;0.01%, F;0.15%, S;0.01% 

appearance: white or yellowish power

Application: for production of capactiors ,Nb carbide

Packing :in iron drum with inner sealed double plastic bag