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Topic: Saponification (Soap reactions) question?  (Read 11964 times)

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Offline brasarehot

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Saponification (Soap reactions) question?
« on: October 16, 2010, 10:43:06 AM »
What is the limiting reagent in saponification? Is NaOH the catalyst? Reactants: Triglyceride and NaOH. Products: Glycerol and fatty acids.
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Offline Cesium-137

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Re: Saponification (Soap reactions) question?
« Reply #1 on: October 17, 2010, 07:26:10 PM »
Yes, NaOH is the catalyst. OH- will attack the carbonyl carbon of the triglyceride, producing the fatty acid. Glycerol acts as a leaving group, picks up a proton from water and regenerates the OH-. The triglyceride is the limiting reagent as NaOH is recycled throughout the reaction.
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