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What is Caffeine Extraction from Tea Lab Guide about?

This document describes a lab experiment to extract caffeine from tea leaves using hot water and methylene chloride. Tea leaves are boiled in water with calcium carbonate to extract caffeine and precipitate tannins. The solution is filtered and caffeine is extracted from the filtrate into methylene chloride using a separatory funnel. The methylene chloride is evaporated to leave pure caffeine.

Author

Sam Tabujara

Language

EN