Iron(II) sulfate heptahydrate (FeSO4 7H2O),left,and iron(III) chloride hexahydrate (FeCl3 6H2O),right. Transition metal salts are often coloured | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 5116 px × 3405 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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