Bromination of Saturated and Unsaturated Hydrocarbons
Dehydration of Sugar by Sulfuric Acid
Organic Synthesis With Familiar Materials
Oxidation of Primary, Secondary, Tertiary Alcohols
Underwater Fireworks: Chlorination of Acetylene
Differences in Miscibility of Organic Alcohols With Increasing Chain Length
Combustion of Cellulose Nitrate (Guncotton)
Different Smells of Carvone Isomers
Distinguishing Between HD and LD Polyethylene
Enviro-bond: Cleaning Oil Spills
Esterification Using a Dean-Stark Trap
IR Demonstration I – Atomic Coupling
IR Demonstrations II – Molecular Vibrations
IR Demonstration III – Molecular Vibrations
Making a Rubber Ball from Latex
Reaction Intermediates in Organic Chemistry
Reducing Sugars and Fehling’s Solution
Rod Climbing by a Polymer Solution
Superabsorbent Polyacrylate Gel
Aniline Hydrochloride-Formaldehyde Polymer
Relative Reactivity of Reducing Agents
Optical Activity of Racemic Mixtures With Limonene
Electrophilic Aromatic Substitution Reaction/EAS Reaction
Reactivity of Alkanes vs. Aromatic Compounds
Relationship of Absorbed Light to Observed Color
Density and Miscibility of Liquids
Extraction of Copper Ions from Solution with Orform®
Gel Formation with Sodium Alginate and Calcium Chloride
Hydrolysis of T-Butyl Chloride: A Lecture and Lab Experiment
Reactivity of Alkanes vs. Aromatic Compounds
Description: A mixture of bromine in carbon tetrachloride is added to ungraduated cylinders, one containing pentane(l) and one containing benzene(l). Both cylinders change to a red-orange color upon mixing. High intensity light is directed through the mixture in each cylinder. After several seconds, one of the solutions is made clear and colorless as a result of the light after undergoing a photolytic substitution reaction. The other solution remains unchanged.
Source: UW Card Catalog
Year: 1992 Vol: N/A Page: N/A
Keywords: Substitution Reaction, Bromine, Aromaticity, Photolysis
Rating: 
Hazard: High
- Flammable liquids
- Acute toxicity hazard
- Carcinogenicity hazard
- Specific organ toxicity- Central Nervous System
- Inhalation hazard
- Skin corrosion hazard
- Aspiration hazard
- Aquatic toxicity hazard
- Germ cell mutagenicity hazard
Effectiveness: Good
- Results are observable without guidance
- Good connection from demo to course material
- Time to results is very low
- Reliability is high
- Counterintuitive effects are observed
Difficulty: Medium
- Some careful manipulations required
- Use of toxic reagents
Safety Precautions:
- Eye protection and gloves required
- Downdraft hood or fume hood required
- ABC fire extinguisher on hand
- Spill kit on hand
- Avoid exposure to vapors, mists, gases, or droplets
- Prevent release of reagents to the environment
- 10% sodium thiosulfate solution on hand
Class: Types of Organic Reactions, Photolytic Substitution
Division: Organic Chemistry, General Chemistry
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