Chloro Complexes of Cobalt (II)
Precipitates and Complexes of Nickel (II)
Precipitates and Complexes of Silver (I)
Spectroscopy for Large Lecture Hall (II)
Bromo Complexes of Copper (II)
Colorful Complex Ions in Ammonia
Colors of Complexes of Transition Metal
Iron (III) Thiocyanate Complex Ion Equilibrium
Precipitates and Complexes of Copper (II)
Precipitates and Complexes of Iron (III)
Relationship of Absorbed Light to Observed Color
Colorful Complex Ions in Ammonia
Description: Amine complexes of copper (II) and cobalt (II) are produced by adding ammonia to solutions of copper and cobalt.
Source: Summerlin, L.R. and Ealy, J.L. Chemical Demonstrations: A Sourcebook for Chemistry Teachers; 2nd Edition
Keywords: Amine complex, Copper (II), Cobalt (II)
Rating: 
Hazard: Medium
- Acute toxicity hazard
- Aquatic toxicity hazard
- Inhalation hazard
- Skin corrosion hazard
- Carcinogenicity hazard
- Reproductive toxicity hazard
- Skin and lung sensitization hazard
- Germ cell Mutagenicity hazard
- Serious eye damage hazard
Effectiveness: Average
- Good connection from demo to course material
- Results are observable without guidance
- Mild effects are seen by audience
- High reliability
- Time to results is very low
Difficulty: Medium
- Some intermediate steps to results
- Volume-dependent addition for proper results
- Use of toxic reagents
Safety Precautions:
- Eye protection required
- Gloves required
- Perform in a well-ventilated area
- Avoid exposure to vapors, mist or liquids
- Absorbent materials 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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