Potassium permanganate and iron sulphate. Test tubes containing potassium permanganate solution (purple,left) and iron (II) sulphate solution (pale green,right) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 3717 px × 5575 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |