Technetium - ₄₃Tc: uses

The following uses for technetium are gathered from a number of sources as well as from anecdotal comments. I would be delighted to receive corrections as well as additional referenced uses.

• ammonium pertechnate, NH₄TcO₄, is a specialist corrosion inhibitor for steel. Mild carbon steels are protected by 5 ppm of KTcO₄ in aerated distilled water at temperatures up to 250°C. This corrosion protection is limited to closed systems, since technetium is radioactive
• superconductor at 11 K and below
• medical imaging agents
• ⁹⁵Tc is used for tracer work (radioactive tracers)