Lab11.pdf - Transfer Hydrogenation of Olive Oil...

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Transfer Hydrogenation of Olive Oil Introduction: The purpose of this experiment is to carry out transfer hydrogenation in order to transform olive oil–an unsaturated fat consisting of glycerol trioleate into a saturated fat, glycerol tristearate. This reaction is nonspontaneous, therefore, it will have to take place in the presence of a catalyst, in this lab it will be palladium. The usual hydrogenation will require higher temperature and pressure. Also, typically hydrogen gas is used as a source of hydrogen, however since it’s explosive, cyclohexane will act as the hydrogen source. The addition of molecular hydrogen will reduce the amount of carbon-carbon bonds π in the alkene to form more of σ bonds or saturated bonds. Methods: To start the experiment, first, prepare a hot bath by setting up a hot plate set to “4” and placing a 125-mL beaker filled with water. Let it set aside until it starts to boil. Then, pre-heat a sand bath at “4” or “5”. Once the water is boiling, move the sand bath on the hot plate and place the boiled hot water into the sand bath. Let it settle until the mixture is ready. Obtain a 5-mL long-necked round-bottom flask and add the following reagents: 50 mg or 10% palladium on carbon, 400 mg of olive oil, and lastly, 1.5 mL of

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