Bromination of Saturated and Unsaturated Hydrocarbons
Dehydration of Sugar by Sulfuric Acid
Organic Synthesis of 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 Demonstrations I- Atomic Coupling
IR Demonstrations II – Molecular Vibrations
IR Demonstrations III – Molecular Vibrations
Making a Rubber Ball from Latex
Reducing Sugars and Fehling’s Solution
Rod Climbing by a Polymer Solution
Superabsorbent Polyacrylate Gel
Aniline Hydrochloride-Formaldehyde Polymer
Relative Reactivity of Reducing Agents
Electrophilic Aromatic Substitution Reaction/EAS Reaction
Reactivity of Alkanes vs Aromatic Compounds
Optical Activity of Racemic Mixtures With Limonene
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
Polyurethane Foam
Description: Polyurethane foam is produced by mixing two liquids, a polyether polyol and a polyfunctional isocyanate. A rigid foam is produced which is many times larger than the original volume.
Source: Shakhashiri, B.Z. Chemical Demonstration: A Handbook for Teachers of Chemistry
Year: 1983 Vol: 1 Page: 216
Keywords: Polymers, Polyurethane, Polyol, Isocyanate
Rating:
Hazard: Some
- Acute toxicity hazard
- Flammable liquids
- Inhalation hazard
- Skin irritation
Effectiveness: Average
- Results are observable without guidance
- Somewhat connected conceptually to course material
- Mild effects are seen by audience
- Contrast between systems is noticeable
- Good reliability
- Time to result is medium
Difficulty: Medium
- Some concerted or timed manipulations
- Handling of organic chemicals
- Simple procedures
Safety Precautions:
- Eye protection required
- Gloves required
- Perform in well-ventilated area
- Perform on temporary surface such as newspaper
Class: Polymers, Organic Chemistry, Macromolecules
Division: General, Organic Chemistry
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