Hydrated copper (II) sulphate crystals (CuSO4. 5H2O) next to an American one cent coin. This chemical compound varies in colour according to the amount of hydration. If no or little water is present (anhydrous),it is white or pale green. The pentahydrate (with five molecules of water for each molecule of copper sulphate) is the bright blue seen here | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 5138 px × 3425 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |