Magic Sand Models the Hydrophobic Effect
Description: This sand is specially coated with a hydrophobic material, and it is not wetted by water. Its appearance in water is compared to that of regular sand. Magic sand is wetted by methanol.
Source: Journal of Chemical Education
Year: 1990 Vol: 67 Page: 512
Keywords: Magic sand, Hydrophobic, Methanol, Water, Methyl Siloxane
Rating: 
Hazard: Low
- Breakage hazard
Effectiveness: Good
- Clearly observable with guidance
- High reliability
- Good connection from demo to course material
- Time to results is low
- Contrast between systems is obvious
Difficulty: Medium
- Simple manipulations for most to perform
- Demos in which a display is used
- Simple procedures
- Some sequential manipulations required
Safety Precautions:
- Eye protection required
- Absorbent material on hand
Class: Intermolecular Forces, Physical Properties
Division: General, Analytical Chemistry
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