Triglycerides are a type of lipid used to store fats. Triglycerides are formed via a condensation reaction between three fatty acids reacting with the alcohols of the glycerol to form as shown below. carboxylic acids esters ethers amides acid anhydrides

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Chapter23: Methyl Stearate From Methyl Oleate
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Question 11
Triglycerides are a type of lipid used to store fats. Saponification is the hydrolysis of
triglycerides into "soap" (salts of long chain carboxylic acids). Oil-based paints are
often made with triglycerides. The colors or pigments often contain metal salts. Soap
'blooms' sometimes appear in old Renaissance paintings in museums leading to
degradation of the artwork. How do these soap blooms form?
Renaissance painters often washed their brushes with soap and water.
The metals can catalyze the formation of triglycerides from fatty acids and
glycerine in the paint.
The metals can catalyze the hydrolysis of the triglycerides in the paint with
water from the air.
The soap used on the floors by the museum cleaning crew bonds to the surface
of the painting.
Transcribed Image Text:Question 11 Triglycerides are a type of lipid used to store fats. Saponification is the hydrolysis of triglycerides into "soap" (salts of long chain carboxylic acids). Oil-based paints are often made with triglycerides. The colors or pigments often contain metal salts. Soap 'blooms' sometimes appear in old Renaissance paintings in museums leading to degradation of the artwork. How do these soap blooms form? Renaissance painters often washed their brushes with soap and water. The metals can catalyze the formation of triglycerides from fatty acids and glycerine in the paint. The metals can catalyze the hydrolysis of the triglycerides in the paint with water from the air. The soap used on the floors by the museum cleaning crew bonds to the surface of the painting.
Triglycerides are a type of lipid used to store fats. Triglycerides are formed via a
condensation reaction between three fatty acids reacting with the alcohols of the
glycerol to form
as shown below.
carboxylic acids
esters
ethers
amides
acid anhydrides
Transcribed Image Text:Triglycerides are a type of lipid used to store fats. Triglycerides are formed via a condensation reaction between three fatty acids reacting with the alcohols of the glycerol to form as shown below. carboxylic acids esters ethers amides acid anhydrides
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