Potassium dichromate (K2Cr2O7) solution in a test tube. The yellow colour comes from the dichromate ions rather than the potassium ions | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Andrew Lambert Photography |
Bildgröße: | 3257 px × 4366 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |