This platinum wire is a thin cylindrical rod of platinum with a diameter of 1 mm. Platinum is a dense, silver-white metal that is highly resistant to corrosion and has a high melting point. Platinum is a precious metal that is valued for its rarity, chemical stability, and catalytic properties. Platinum wire is often used as electrodes in fuel cells, batteries, and other electrochemical devices, in catalytic converters in the automotive industry, in medical implants, and in heating elements and thermocouples.