: Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as minor components in alloys. The chemical inertness of tantalum makes it a valuable substance for laboratory equipment and a substitute for platinum.
: T 5744 (OTTOKEMI) Tantalum foil, 0.01 mm thick, 99.9% Cas 7440-25-7 - used in making carbide tools for metalworking equipment and in the production of superalloys.