In this video, the alkaloid caffeine is extracted from tea. Caffeine is the world's most popular drug. By weight, dry tea leaves are about 3% caffeine. This experiment is performed by extracting the tea into boiling water, and then extracting the caffeine into chloroform. This is then boiled down to get the caffeine. Black tea can be bought anywhere. The synthesis of chloroform is shown in one of our earlier videos. (www.youtube.com DO NOT consume the caffeine you extract. Chloroform is a toxic, carcinogenic solvent. Minimize your exposure to its fumes and wear gloves. Perform this experiment outdoors or under a fume hood, of course. For the first time in Reaction Factory history, there are no reactions in this video, only extractions.
Showing posts with label Extraction. Show all posts
Showing posts with label Extraction. Show all posts
Saturday, February 2, 2013
Caffeine Extraction from Tea
Caffeine Extraction from Tea Tube. Duration : 2.68 Mins.
In this video, the alkaloid caffeine is extracted from tea. Caffeine is the world's most popular drug. By weight, dry tea leaves are about 3% caffeine. This experiment is performed by extracting the tea into boiling water, and then extracting the caffeine into chloroform. This is then boiled down to get the caffeine. Black tea can be bought anywhere. The synthesis of chloroform is shown in one of our earlier videos. (www.youtube.com DO NOT consume the caffeine you extract. Chloroform is a toxic, carcinogenic solvent. Minimize your exposure to its fumes and wear gloves. Perform this experiment outdoors or under a fume hood, of course. For the first time in Reaction Factory history, there are no reactions in this video, only extractions.
In this video, the alkaloid caffeine is extracted from tea. Caffeine is the world's most popular drug. By weight, dry tea leaves are about 3% caffeine. This experiment is performed by extracting the tea into boiling water, and then extracting the caffeine into chloroform. This is then boiled down to get the caffeine. Black tea can be bought anywhere. The synthesis of chloroform is shown in one of our earlier videos. (www.youtube.com DO NOT consume the caffeine you extract. Chloroform is a toxic, carcinogenic solvent. Minimize your exposure to its fumes and wear gloves. Perform this experiment outdoors or under a fume hood, of course. For the first time in Reaction Factory history, there are no reactions in this video, only extractions.
Saturday, November 24, 2012
Tea Caffeine Extraction - Reading between the leaves
Tea Caffeine Extraction - Reading between the leaves Tube. Duration : 2.90 Mins.
Part of a science and health package for Medill Reports here: (news.medill.northwestern.edu In this video: Dani Friedland, Tara Kerpelman
Part of a science and health package for Medill Reports here: (news.medill.northwestern.edu In this video: Dani Friedland, Tara Kerpelman
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