Bromo Complexes of Copper (II)
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.
Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry
Year: 1983 Vol: 1 Page: 314
Keywords: Coordination, Copper (II), Bromide Ion, Complexation
Rating: 
Hazard: Some
- Toxicity hazard
- Aquatic toxicity hazard
- Skin corrosion hazard
- Aspiration hazard
- Serious eye damage hazard
Effectiveness: Average
- Good connection from demo to course material
- Mild effects are seen by audience
- Results are observable without guidance
- Time to results is high
Difficulty: Medium
- Some intermediate steps to results
- Volume-dependent additions for proper results
- Use of reactive substances
Safety Precautions:
- Eye protection required
- Gloves required
- Perform in a well-ventilated
- Absorbent material on hand
- Sodium bicarbonate on hand
- Prevent release of reagents to the environment
Class: Transition Metals, Coordination Compounds
Division: General, Inorganic Chemistry
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