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Caffeine Lab Report

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Caffeine Lab Report
Caffeine is a basic compound that at neutral state is slightly polar. In this lab the acid/base equilibrium of caffeine was used to extract it from degassed soda by the use of liquid-liquid extraction using methylene gas, sodium hydroxide pills, and brine. The liquid-liquid acid/base equilibrium extraction was conducted to transfer caffeine into the organic methylene chloride layer from the aqueous layer. After, in order to determine the extracted caffeine's purity it was developed in a TLC plate along with a prepared pure solution of caffeine for comparison. The TLC plate was then viewed under a UV light to determine purity. Seven mg of pure caffeine was obtained from the 125 mL of soda through the liquid-liquid extraction.
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