Background Biodiesel is the methyl (or ethyl) ester of the fatty acids found in vegetable oils and animal fats. A proposed first step in replacing petroleum diesel with biodiesel is to use discarded, waste vegetable oil from restaurants as a starting material for biodiesel. In this laboratory, however, we will synthesize biodiesel from vegetable oil to illustrate the chemical process and laboratory techniques involved while avoiding the complications associated with used cooking oil. H₂C-O-C-R OH R-C-O-CH + R₁-CH2 OH Catalyst (R-CH₂-O_I_R) H₂C-OH но-сн + HO-CH 3 H₂C-OH H₂C-O-C-R Glyceride Alcohol Esters Glycerol Pre-practical "MUST DO" to be included in your lab-book: 1. Write a reaction mechanism (using curly arrows to show each bond made/broken) 2. NaOH is in a catalytic amount, why is it not needed in equimolar amount to the MeOH? 3. The glycerol is contained in the methanol layer which needs to be removed by rotavap. How do you know when all of the methanol has been removed?

Background Biodiesel is the methyl (or ethyl) ester of the fatty acids found in vegetable oils and animal fats. A proposed first step in replacing petroleum diesel with biodiesel is to use discarded, waste vegetable oil from restaurants as a starting material for biodiesel. In this laboratory, however, we will synthesize biodiesel from vegetable oil to illustrate the chemical process and laboratory techniques involved while avoiding the complications associated with used cooking oil. H₂C-O-C-R OH R-C-O-CH + R₁-CH2 OH Catalyst (R-CH₂-O_I_R) H₂C-OH но-сн + HO-CH 3 H₂C-OH H₂C-O-C-R Glyceride Alcohol Esters Glycerol Pre-practical "MUST DO" to be included in your lab-book: 1. Write a reaction mechanism (using curly arrows to show each bond made/broken) 2. NaOH is in a catalytic amount, why is it not needed in equimolar amount to the MeOH? 3. The glycerol is contained in the methanol layer which needs to be removed by rotavap. How do you know when all of the methanol has been removed?

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter23: Organic Polymers, Natural And Synthetic

Section: Chapter Questions

Problem 46QAP: Glycolysis is the process by which glucose is metabolized to lactic acid according to the equation...

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