5. Glossary

ligand; ligand

Molecule or ion interacting with other atoms or central ions. The ligand – central ion association forms a coordination complex. In this case, the ligand is also called a complexing agent.

WEEE

Waste electrical and electronic equipment, such as household electrical appliances. European directives, transposed into French law, regulate the management of this waste.

leaching; leaching

Extraction of soluble products using a solvent, in particular an aqueous solution in contact with an ore.

surfactant; surfactant

Amphiphilic molecule stabilizing the liquid/gas interface in aqueous foams