Potassium chromate (K2CrO4) solution in a test tube. The yellow colour comes from the chromium ions rather than the potassium ions | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Andrew Lambert Photography |
Taille de l’image : | 3193 px × 4428 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |