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About CCA!
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Voiceover
Concentrated sulfuric acid is added to table sugar, sucrose, which
had previously been mixed with water. The sulfuric acid dehydrates
the sugar, a carbohydrate. The sugar turns brown due to the removal
of water in this caramelization process. The remaining black solid
contains mostly carbon. Steam generated in this exothermic process
causes the solid mass to expand.
Sulfuric acid also acts as an oxidizing agent, and is reduced to
sulfur dioxide. A rose petal is bleached by the sulfur dioxide.
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Design and Demonstration:
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George Gilbert
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Denison University, Granville, OH 43023
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Video production, editing, and voice:
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Jerrold J. Jacobsen
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University of Wisconsin - Madison, Madison, WI 53706
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Greg Minix
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University of Wisconsin - Madison, College of Engineering, Madison, WI 53706
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Kelly Houston Jetzer
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University of Wisconsin - Madison, Madison, WI 53706
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