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Caffeine Extraction from Coffee by ScribdTranslations is a document available to read on EtoBox.
This document describes a procedure for extracting caffeine from coffee using a Soxhlet extractor and a separating funnel. Ground coffee and calcium carbonate are placed in the Soxhlet extractor and extracted with distilled water for 5 hours. The solution is then extracted with chloroform in a separating funnel to separate the phases. After drying and evaporation, caffeine crystallizes and is filtered. The yield of caffeine obtained was 0.011%.
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- EN