Activity IV

Demonstration: Synthesis of C/C (Optional)

An in-class demonstration of the synthesis of C/C using the carbon-arc method can be carried out. Relatively simple reaction kettle/electrode assemblies have been described in the literature (Iacoe, 1992, and Craig, 1992). There are two concerns. One is the cost of constructing the apparatus, which will require the assistance of a capable glassblower. The second is the issue of safety. Fullerenes, like the condensed ring aromatic molecules, may have carcinogenic properties. In addition, they are known to be efficient sensitizers for the formation of highly reactive singlet oxygen. Hence, the entire reactor assembly, including the vacuum pump, should be placed in a good hood during the demonstration.

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