Extraction Of Caffeine From Tea Leaves Lab Report Pdf

In this experiment we aimed to extract caffeine from the tea leaves in the tea bags provided beginning with a solid liquid extraction method and then a liquid liquid extraction.

Extraction of caffeine from tea leaves lab report pdf. Caffeine was extracted from tea by the use of solid liquid and liquid liquid extractions. Experiment 6 isolation of caffeine from tea leaves page 3 procedure 1. Winthrop university organic chemistry lab department of chemistry chem 304 revision 1 2015 extraction of caffeine from tea leaves introduction extraction is a common technique used in organic chemistry to separate or isolate a desired compound from a mixture. Discussion flow chart of separation of caffeine from tea leaves cellulose caffeine chlorophyll.

Open two tea bags by removing the staple trying to not tear the paper. The two major types of extractions used in the organic laboratory are solid liquid extraction and liquid liquid extraction. In this laboratory caffeine will be isolated from tea leaves. Our goal is to combine the skills you have already learned in an experiment which mimics those actually.

The flow diagram below summarizes the extraction portion of the experiment. An acid base liquid liquid extraction took place in order to force caffeine into the organic layer. Non toxic easily removed desired constituent is soluble non reactive. Isolation of caffeine from tea leaves via acid base liquid liquid extraction andra postu october 6 2013 lab partner.

2014 extracted caffeine from used leaves of green white black as well as red tea and found maximum caffeine content 60 mg 100 g in green tea and minimum in red tea 3 mg 100. Liquid liquid solid liquid solvents for extraction. Weigh the total contents to the nearest milligram and record this weight. Discussion extraction the method of separating a substance from a mixture by dissolving one or more of the components in a solvent types.

Extraction techniques are used to isolate and remove particular compounds form another substance. Each has been explored in a separate experiment earlier in the semester. Place the tea bags into the bottom of a. The techniques you will be using are familiar.