Separation Of 4-Cloroaniline And Naphthalene

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Recommended: Acid and base extraction analysis

Introduction/Background Acid- Base Extraction is a method used to separate organic compounds from mixtures. The theory of Acid-Base Extraction states most organic compounds are more soluble in organic solvents than in water. However, if the organic compound is rendered ionic, it becomes more soluble in water than in the organic solvent (Schaller). Because the two solvents are immiscible, they will form two layers which allows for separation of the lower layer using a separatory funnel. The name “Acid-Base Extraction” is given to this technique because by adding an acid or base to a mixture, we can extract a Base or an Acid. In this experiment, a mixture of benzoic acid, 4-chloroaniline and naphthalene will be separated using the extraction …show more content…

This shows that our experiment yielded the correct form of each compound. The percent recovery was accurate for 4-Cloroaniline and Naphthalene yielding 99.9 and 109.9 % respectively while Benzoic Acid only yielded 45.95%. Possible reasons for Benzoic Acid yielding such a low percentage might be because of not capping the separator funnel while working to precipitate 4-chloraniline, also not removing all of the Benzoic Acid from the separatory funnel adds to a recovery less than …show more content…

Confirming the Acid- Base extraction theory the acid, base and organic compound making up the organic mixture were separated using a separatory funnel. Techniques performed in this lab can be applied to real life situations such as the extraction or purification of petroleum.. This Acid-Base technique performed remarkable well and separated the organic compounds from the mixture as it set out to do. References "Acid-Base Reactions." Science of Everyday Things. 2002, and Melvin D. Joesten. "Acid-Base Reactions." Encyclopedia.com. HighBeam Research, 01 Jan. 2002. Web. 17 Sept. 2015. Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 01 July 2014. Web. 17 Sept. 2015. "Naphthalene." Naphthalene. N.p., n.d. Web. 17 Sept. 2015. Schaller, Chris P. "Acid-Base Extraction." - Chemwiki. N.p., 02 Oct. 2013. Web. 17 Sept. 2015. Weldegirma, Solomon. "Simple and Fractional Distillation." Experimental Organic Chemistry. N.p.: 2015, n.d. 1-9.

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