Bromination of Saturated and Unsaturated Hydrocarbons
Description: A solution of bromine in carbon tetrachloride is added to both pentane and pentene. The pentene decolorizes immediately; the pentane takes longer. The pentane decolorization can be hastened by a bright light. Addition of bromine to benzene will not decolorize.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Photochemistry, Double bond, Alkene, Alkane
Rating: 
Hazard: High
- Acute toxicity hazard – oral, dermal, inhalation
- Flammability hazard
- Inhalation hazard
- Skin corrosion hazard
- Specific organ toxicity – central nervous system, liver, kidneys, blood
- Serious eye damage
- Carcinogenicity hazard
- Aquatic toxicity
- Aspiration hazard
- Germ cell mutagenicity
Effectiveness: Good
- Clear contrast between behavior of systems
- High reliability
- Good connection from demo to course material
- Time to results is low
- Moderate effects are seen by audience
Difficulty: Medium
- Sequential manipulations
- Procedure with some intermediate steps
- Handling of organic reagents
Safety Precautions:
- Eye protection required
- Perform in a well-ventilated area
- Spill materials on hand
- No open flames during performance
- ABC fire extinguisher on hand
- Sodium thiosulfate on hand
- Gloves required
- Downdraft hood required
- Avoid exposure to mists, droplets and vapors
- Prevent release of reagents to the environment
Class: Addition Reactions, Hydrocarbons, Properties of Organic compounds
Division: General, Organic Chemistry
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