Chloro Complexes of Cobalt (II)
Precipitates and Complexes of Nickel (II)
Precipitates and Complexes of Silver (I)
Spectroscopy in Large Lecture Hall II
Bromo Complexes of Copper (II)
Colorful Complex Ions in Ammonia
Colors of Complexes of Transition Metals
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
Reduction of Permanganate Ion by Sulfite Ion
Hydration of Cu (II) Ion
A capped, labeled bottle with a black solid and a beaker with dark liquid. In the next photo, a capped, labeled bottle with black solids, a beaker with an upper layer of dark green liquid and a layer of blue liquid. Dark solids are seen at the bottom of the beaker. A flask with clear liquid is next to the beaker.
Description: Solid cupric bromide dissolved in alcohol is brown. Adding water to this solution produces a blue-green color.
Source: Summerlin, L.R. and Ealy, J.L. Chemical Demonstrations: A Sourcebook for Teachers; 2nd Edition
Year: 1985 Vol: 1 Page: 44
Keywords: Bromide, Alcohol, Blue-green, Brown
Rating: 
Hazard: Medium
- Acute toxicity hazard
- Inhalation hazard
- Aquatic toxicity hazard
- Flammability hazard
- Eye damage hazard
Effectiveness: Average
- Somewhat connected to course material
- Results are observable without guidance
- Mild effects are seen by audience
- High reliability
- Time to results is low
Difficulty: Medium
- Some intermediate steps to results
- Use of toxic reagents
- Use of organic reagents
- Some sequential manipulations
Safety Precautions:
- Eye protection required
- Gloves required
- Perform in a well-ventilated area
- ABC fire extinguisher on hand
- Absorbent materials on hand
- Avoid contact with liquid
- Prevent release of reagents to the environment
Class: Transition Metals, Coordination Compounds
Division: General, Inorganic Chemistry
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