About the element

Copper is a chemical element with the symbol Cu and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color.


Key facts

  • Symbol: Cu
  • Melting point: 1,085 °C
  • Atomic number: 29
  • Atomic mass: 63.546 u

Most of the targeted by-products elements are Critical Raw Materials (CRMs). CRMs combine raw materials of high importance to the EU economy and of high risk associated with their supply.