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 Demonstration 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
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
Silly Putty
Description: Silly Putty is a silicone polymer which is a non-Newtonian fluid, similar to slime. It has dilatant properties; it expands when sheared, resulting in an increased viscosity under stress. As a result, silly putty will form thin strands when it is pulled apart slowly, but it will break when pulled apart sharply.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Silicone polymer, Dilatant properties
Rating:
Hazard: Low
- Commercial product determined non-toxic
Effectiveness: Average
- Results are observable with guidance
- Mild effects are seen by audience
- Time to results is low
- Good connection from demo to course material
- Good contrast in system behavior
Difficulty: Low
- Simple procedures
- Simple manipulations for most to perform
Safety Precautions:
- Eye protection required
Class: Organic Chemistry, Polymers
Division: General Chemistry, Organic Chemistry, Physical Chemistry
Return to General Chemistry Demonstrations