Evaporation of Ether is Endothermic
Description: Diethyl ether is squirted on a towel wrapped around the bulb of an air thermometer. The temperature drops as the ether evaporates.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Diethyl ether, Air thermometer, Evaporation, Endothermic
Rating: 
Hazard: Medium
- Asphyxiation hazard
- Inhalation hazard
- Flammability hazard
- Mild explosion hazard
- Acute toxicity hazard – oral
- Specific organ toxicity – single exposure, central nervous system
- Chronic aquatic toxicity
Effectiveness: Average
- Results are observable with guidance
- Mild effects are seen by audience
- Good connection from demo to course material
- Contrast between systems behavior is noticeable
- Time to results is high
- Good reliability
Difficulty: Medium
- Simple procedures
- Simple manipulations for most to perform
- Handling of organic chemicals
- Exposure to potential toxicity
Safety Precautions:
- Downdraft hood required
- Eye protection required
- Gloves required
- Perform in a well-ventilated area required
- ABC fire extinguisher on hand
- Absorbent material on hand
- Prevent release of reagents to the environment
Class: intramolecular Forces, Thermodynamics
Division: General
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