Combustion of Cellulose Nitrate (Guncotton)
Comparing the Specific Heat of Metals II
Endothermic Reaction of Barium Hydroxide and Ammonium Salts
Explosive Decomposition of Nitrogen Triiodide
Explosive Reaction of Hydrogen and Oxygen
Comparing the Specific Heat Capacity of Metals I
Decomposition of Ammonium Dichromate
Evaporation as an Endothermic Process
Evaporation of Ether is Endothermic
Explosions of Lycopodium and Other Powders
Reaction of Calcium Oxide and Water
Reaction of Potassium Permanganate and Glycerine
Spontaneous Combustion of White Phosphorus
Reactions of Metals and Hydrochloric Acid
Reaction of Calcium Oxide and Water
Description: Add water to calcium oxide (quicklime) and observe the temperature rise with digital thermometer and evolution of steam.
Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry
Year: 1983 Vol: 1 Page: 19
Keywords: Calcium oxide, Exothermic, Slaking, Digital thermometer, Lime
Rating: 
Hazard: Medium
- Skin corrosion hazard
- Inhalation hazard
- Burn hazard
- Short term aquatic toxicity hazard
- Serious eye damage hazard
- Electric shock hazard
Effectiveness: Average
- Secondary observation
- Moderate failure rate
- Mild effects are seen by audience
- Some connections from demo to course material
- Time to results is low
- Results are difficult to perceive
Difficulty: Medium
- Simple procedures
- Simple manipulations for most to perform
- Demos in which remote display is needed
- Exposure to hazardous reagents
- Demos at non-standard conditions
Safety Precautions:
- Eye protection required
- Gloves required
- Thermal gloves recommended
- Perform in a well-ventilated area
- Avoid exposure to dust, mists, or vapor
- Use of UL approved three-prong plug and outlet
- Perform on a chemically resistant surface
Class: Thermochemistry
Division: General
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