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KHSO4 is a dehydrating agent for glycerol. On heating it gives ACROLEIN. I'll try to show it here
CH2OH-CH(OH)-CH2OH ----KHSO4 (-2H2O)----> CH2=C=CH-OH ----Tautomerize----> CH2=CH-CH=O (Acrolein also called acraldehyde)
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∙ 10y ago
Wiki User
∙ 14y agoCH2OH-CH2OH-CH2OH (Glycerol) => CH2=CH-CHO (Acrolein) + 2 H2O (catalyst: KHSO4)
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What is the significance of the acrolein test?
The acrolein test tests for the presence of glycerin or fats. There is no general equation for it, although the sample is heated with potassium bisulfate and if acrolein is released, the test is positive.
The result of Acrolein Test?
Acrolein test is a test for the presence ofglycerin or fats. A sample is heated with potassium bisulfate, and acrolein is released if the test is positive.[8] When a fat is heated strongly in the presence of a dehydrating agent such asKHSO4, the glycerol portion of the molecule is dehydrated to form the unsaturated aldehyde, acrolein (CH2=CH-CHO), which has the peculiar odor of burnt grease.
What salt is formed when potassium hydroxide reacts with suphuric acid?
The salt formed by potassium hydroxide and sulphuric acid is potassium sulphate (K2SO4). Though if potassium hydroxide is the limiting reagent potassium bisulphate (KHSO4) will also form.
Can glycerol form any enantiomers?
Yes, it can. There are two glycerol enantiomers, depending on the position of OH group on the second carbon atom.
What reacts with water to form a gas?
A physical change is when something reacts with water to form a gas. For example, when magnesium reacts with water vapor, it will form hydrogen gas and magnesium hydroxide.
Why acrolein is a general test for fats?
Because when a fat is heated strongly in the presence of a dehydrating agent such as KHSO4, the glycerol portion of the molecule is dehydrated to form the unsaturated aldehyde, acrolein (CH2=CH-CHO), which has the peculiar odor of burnt grease. A sample is heated with potassium bisulfate, and acrolein is released if the test is positive. That's why Acrolein test is a test for the presence of glycerin or fats. source from the page of: http://en.wikipedia.org/wiki/Acrolein
What is the significance of the acrolein test?
The acrolein test tests for the presence of glycerin or fats. There is no general equation for it, although the sample is heated with potassium bisulfate and if acrolein is released, the test is positive.
The result of Acrolein Test?
Acrolein test is a test for the presence ofglycerin or fats. A sample is heated with potassium bisulfate, and acrolein is released if the test is positive.[8] When a fat is heated strongly in the presence of a dehydrating agent such asKHSO4, the glycerol portion of the molecule is dehydrated to form the unsaturated aldehyde, acrolein (CH2=CH-CHO), which has the peculiar odor of burnt grease.
An alcohol that reacts with fatty acids to form fats?
This alcohol is glycerol. They form lipids when fatty acids attach to them.
What salt is formed when potassium hydroxide reacts with suphuric acid?
The salt formed by potassium hydroxide and sulphuric acid is potassium sulphate (K2SO4). Though if potassium hydroxide is the limiting reagent potassium bisulphate (KHSO4) will also form.
What two molecules combine to form lipids?
glycerol and carboxylic acid combines to form a lipids.
Would water and glycerol form a solution?
Yes. Glycerol is miscible (soluble) in water, so it will make a solution.
What compounds form fats when combined with glycerol?
alcohols
Can glycerol form any enantiomers?
Yes, it can. There are two glycerol enantiomers, depending on the position of OH group on the second carbon atom.
What reacts with water to form a gas?
A physical change is when something reacts with water to form a gas. For example, when magnesium reacts with water vapor, it will form hydrogen gas and magnesium hydroxide.
What is an aquaglyceroporin?
An aquaglyceroporin is a form of aquaporin which is active in the transport of glycerol.
Protein that reacts with fibrinogen to form fibrin?
The coagulation protein thrombin reacts with fibrinogen to form fibrin
