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List of aqueous ions by element
From Wikipedia, the free encyclopedia
This table lists the ionic species that are most likely to be present, depending on pH, in aqueous solutions of binary salts of metal ions. The existence must be inferred on the basis of indirect evidence provided by modelling with experimental data or by analogy with structures obtained by X-ray crystallography.
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• the red cobalt cation Co2+ from Co(NO3)2 (see § Co)
• the orange chromium oxyanion Cr2O2−7 from K2Cr2O7 (§ Cr)
• the yellow chromium oxyanion CrO2−4 from K2CrO4 (§ Cr)
• the turquoise nickel cation Ni2+ from NiCl2 (§ Ni)
• the blue copper cation Cu2+ from CuSO4 (§ Cu)
• the purple manganese oxyanion MnO−4 from KMnO4 (§ Mn)