Potassium dichromate. Potassium dichromate(VI) (K2Cr2O7) in a watch glass. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 5158 px × 3431 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |