Electrical Conductivity of Liquids and Solutions
Lecture Size Breath Alcohol Test
Reaction of Potassium Metal with Bromine
Reduction of Copper Oxide by Hydrogen
Using Large Glass Cylinders to Demonstrate Precipitation Reactions
Coin-operated Red, White, and Blue Fountain: Reaction of Nitric Acid and Copper
Conductivity of Acetic Acid – Water Mixtures
Effect of Ion-Exchange Resin on Conductivity
Oxidation of Chloride Ion by Permanganate
Oxidation of Chloride Ion by Permanganate
Description: Purple permanganate ion is reduced and almost decolorized (to Mn(II) ) by chloride ion in acid solution. Purple permanganate ion is reduced to green manganate ion by chloride ion in basic solution. In neutral chloride solution, there is no reaction.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Potassium permanganate, Chloride ion, Redox, Hydrochloric acid
Rating: 
Hazard: High
- Carcinogenicity hazard
- Acute toxicity hazard – oral, dermal
- Mutagenicity hazard
- Skin corrosion hazard
- Mild inhalation hazard
- Corrosive to metals
- Aquatic toxicity
- Oxidizer
Effectiveness: Good
- Some connection to course material
- Time to results is low
- Results are observable without guidance
- Good reliability
- Mild effects are seen by audience
Difficulty: Medium
- Some sequential manipulations
- Use of toxic chemicals
- Some intermediate steps to results
Safety Precautions:
- Eye protection required
- Gloves required
- Absorbent material on hand
- Perform on a chemically inert surface
- Avoid exposure to liquid or droplets
- Lab coat recommended
- Prevent release of reagents to environment
Class: Redox Reactions, Transition Metals
Division: General, Analytical Chemistry, Inorganic Chemistry
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