BRAINCAKEReactions of Amines with Copper(II) Ions
Amines react with aqueous copper(II) ions in two different ways, depending on how much amine is added. The reaction closely mirrors that of ammonia.
Copper(II) sulfate solution contains the pale blue complex ion [Cu(H2O)6]2+.
A few drops of amine. An aqueous amine such as butylamine is basic. It removes protons from two water ligands, and a pale blue precipitate of copper(II) hydroxide forms:
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Key terms in this lesson
- coordinate bond
- A covalent bond in which both shared electrons come from the same atom.
More in Amines, Amides, Amino Acids and Proteins
- Basicity of Amines
- Preparation of Aliphatic Amines
- Preparation of Phenylamine
- Reactions of Amines with Acids and Acyl Chlorides
- Amides
- Condensation Polymers - Polyamides
- Amino Acids
- Zwitterions and Isoelectric Points
All 12 lessons in Amines, Amides, Amino Acids and Proteins · All Edexcel A-level Chemistry topics