Add equal parts of copper oxide and charcoal granules to a boiling tube. Using a Bunsen burner heat the tube strongly for 5 minutes and then allow to cool. Small granules of red copper can be seen. Smelting is a chemical reduction of an oxide of a metal with carbon in a furnace. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 6720 px × 4480 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |