Sulfates. Left to right: hydrated aluminum sulfate (Al2(SO4)3 XH2O),zinc sulfate heptahydrate (ZnSO4 7H2O),copper(II) sulfate pentahydrate (CuSO4 5H20),iron(II) sulfate heptahydrate (FeSO4 7H2O). Transition metal salts are often coloured,with zinc salts being a notable exception | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
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