Tubeless Siphon
Description: An aqueous polyethylene oxide solution, once started, will siphon over the edge of a beaker.
Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry
Year: 1989 Vol: 3 Page: 333
Keywords: Tubeless siphon, Non-Newtonian, Polyethylene oxide, Polymers
Rating: 
Hazard: Medium
- Acute toxicity hazard
- Skin corrosion hazard
- Serious eye damage
- Aquatic toxicity hazard
Effectiveness: Average
- Somewhat connected conceptually to course material
- Mild effects are seen by audience
- Moderate failure rate
- Counter-intuitive effects
Difficulty: Medium
- Some careful manipulations required
- Some intermediate steps to final results
- Prior training recommended
Safety Precautions:
- Eye protection and gloves required
- Prevent release of reagents to the environment
- Avoid exposure to dusts and vapors
Class: Organic Chemistry, Macromolecules and Solid State
Division: General, Organic Chemistry, Physical Chemistry
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