Copper (II) sulphate in hydrated (blue) and anhydrous (white) forms. 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 form (with five molecules of water for each molecule of copper sulphate,CuSO4. 5H2O) is the bright blue seen here | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 5137 px × 3437 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |