Description: Concentrated hydrobromic acid is added to copper (II) sulfate solution in small increments. Color changes indicating successive replacement of water by bromide in the hexa-aquo copper ion are observed.

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Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry

Year or vol: 1 page: 314

Keywords: Complex Ion, Copper (II), Bromide Ion, Bromo Complexes, Copper (II)