Experiment 9.docx - Experiment 9 Saponification of Fat The...

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Experiment 9: Saponification of Fat: The Preparation of Soap from ShorteningTien-Huy NguyenPartner: Skyler PavlouCHEM 2081 Section 010Drawer Number #87Sean Spurlin04/24/18
PurposeThe purpose of this lab is to make a soap using an identified fat, 95% ethanol, and sodium hydroxide, followed by tests after synthesis. IntroductionIn Experiment 8, a soap plus a glycerol is yielded through a process involving the alkaline hydrolysis of a fat or oil. As hydroxide ions cleave the triglyceride, this soap will consist of the resulting mixture of sodium or potassium salts of the carboxylic acid chains that form.Procedure/MethodsTo begin, 2.5 mL of deionized water and 2.5 mL of 95% ethanol were placed into a 15 mLround bottom flask and 0.7 g of sodium hydroxide was dissolved in it. Reflux was carried out for 45 minutes after the addition of 1 mL oil shortening (grapeseed oil) and boiling chips. During reflux, 10 mL of 40% sodium chloride solution is prepared with water, and added to the refluxedmixture to stir and place in ice bath.

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