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In addition, some solvent dichloromethane extraction of caffeine from Green Tea leaves for Does it work?

This is the caffeine in the laboratory Organic Chemistry for our Tea Extract.

Good place Here we dichloromethane trichloromethane can use the location of the beakers 5g Put Tea Leaves in 250ml of boiling process, add 200ml water. Allow to steep 5 minutes. Added to the website of the saturated solution 3ml filters. Zinc acetate precipitate tannis Solutions can be. Precipitation, filtration for writing tests Removal of lead ions, which diluted sulfuric acid added to the car drop A few. A few drops of a solution of zinc acetate is tannis. Both lead and interfere with the extraction of caffeine tannis must be removed. Filter the solution again. Remove extract, 50ml and filtered several times Funnels are trichloromethane. Sometimes the gas cap peoneoluiyi Reverse Separation To escape. I continue to stand about 2 minutes at night. To flee. Do not form a vigorously shaking Trichloromethane layer emulsion or a funnel to separate the clean, dry, sunny, Beaker and weigh. (3 to 10 decimal places using the weighing Delicate balance.) Or allow (a decision on evaporation to trichloromethane White Pine Needle-shaped yellow or electric heaters for use Evaporation chamber to delay trichloromethane). Is observed. Beaker weight back. 5g of tea leaves there are differences in the amount of caffeine.

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Paul McCartney - English Tea

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