Eduard-Job-Foundation for Thermo- and Matterdynamics

Experiment 4.10: Carbide Lamp

Experiment: Carbide Lamp

Procedure:
Water is dripped cautiously onto some grayish brown lumps of calcium carbide.

Observation:
The produced gaseous ethyne burns with a bright and sooty flame. Additionally, an unpleasant garlic-like odor can be noticed. 

Explanation:
Calcium carbide reacts with water thereby liberating ethyne (acetylene) according to

formel2.gif

This means that also substances with positive μ can be produced.

Video (mpg4, 0:58)