Zinc oxide being heated in the flame of a bunsen burner. When heated,white zinc oxide turns yellow | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 2848 px × 4256 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |