Preparation and Combustion of Acetylene

CCA! Volume 5

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Preparation and Combustion of Acetylene

Calcium carbide is added to water. This produces acetylene gas, which is then ignited.


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Voiceover
Calcium carbide lumps are dropped into a beaker of water. Bubbles of flammable acetylene gas are produced.

Discussion
Calcium carbide lumps are dropped into a beaker of water and bubbles of acetylene gas are produced. A flame from a match held above the beaker ignites the acetylene producing a sooty flame.

2C₂H₂(g) + 5O₂(g) ---> 4CO₂(g) + 2H₂O(g)
Because the flame is sooty, the second equation does not tell the whole story of the combustion of acetylene under these conditions.

Citation:
	Summerlin, L. R.; Ealy, J. L. Jr.	Chemical Demonstrations; American Chemical Society: Washington, DC, 1985; Vol. 1, pp 162-163.

Design, Text and Demonstrator:
	Gary Trammell	University of Illinois at Springfield, Springfield, IL 62794

Videographer/Editor:
	Steve Dykema	University of Illinois at Springfield, Springfield, IL 62794

Voice:
	Margaret Biddle	University of Wisconsin - Madison, Madison, WI 53706

Audio Production:
	Greg Minix	University of Wisconsin - Madison, College of Engineering, Madison, WI 53706
	Jerrold J. Jacobsen	University of Wisconsin - Madison, Madison, WI 53706