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Caffeine Extraction from Vivarin Tablets by NovVie VietTha Sccor II is a document available to read on EtoBox.
The document describes an experiment to extract caffeine from Vivarin tablets using multiple extractions with methylene chloride. Three Vivarin tablets are crushed and dissolved in water, then filtered. The aqueous solution is extracted three times with 20-mL portions of methylene chloride, which are combined and evaporated to yield crude caffeine. The crude caffeine is purified by dissolving in benzene and adding petroleum ether to cause crystallization, producing purified caffeine. Students measure the th
- Author
- NovVie VietTha Sccor II
- Language
- EN