Hand Warmer
Description: Commercially available hand warmer that uses the oxidation of iron to provide heat. Just expose the packet to air, and it will remain warm for several hours.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Oxidation, Iron, Heat
Rating: 
Hazard: Low
- Self-contained reagents
- Mild ingestion hazard if outer pouch is broken
Effectiveness; Average
- Good connection from demo to course material
- No visual effects
- Time to results is medium
- High reliability
- Secondary observations
- Hard to observe or perceive results
Difficulty: Low
- Simple procedures
- Simple manipulations for most to perform
- Standard lab conditions
- Demos in which samples are passed out to audience
- Demos in which a display is used
Safety Precaution:
- Eye protection required
- Use of UL approved three-prong plug and outlet if temperature is displayed.
Class: Thermochemistry
Division: General
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