Are lipids(oils) soluble or insoluble in ethyl acetate?
I want to know whether virgin coconut oil, olive oil, and cooking oil
wll dissolve in ethyl acetate, lipids are highly soluble in non- polar organic solvents and I know that ethyl acetate is a moderately polar solvent im wondering why when we conducted the experiment it is soluble rather than insoluble.
Answer:
Moderately polar may mean slightly polar. Ethyl Acetate can only dissolve up to 3% water; so, its property is more of a non-polar solvent rather than a polar solvent. It is then not surprising that your oils are miscible with it.
Ethyl acetate is non-polar as there is no net dipole action within the molecule due to resonance in carboxyl group.
Since ethyl is non-polar, it is surely miscible with non-polar compounds like oils.
Ethyl acetate is a moderately polar solvent that has the advantages of being volatile, relatively non-toxic, and non-hygroscopic. It is a weak hydrogen bond acceptor, and is not a donor due to the lack of an acidic proton.
Ref: http://en.wikipedia.org/wiki/ethyl_aceta...
Oils are the result of the hydrolysis of fats. Fats are trigycerides with the following structure:
CH2O2C--------
CHO2C-------------- + NaOH + Heat -->
CH2O2C---------------
CH2OH + HOOC--------
CHOH + HOOC--------------
CH2OH + HOOC---------------
the three carboxylic acids are called fatty acids - oils. They have a long nonpolar ends and a polar COOH end that can H-bond with ethyl acetate, which is why ethyl acetate can dissolve the oils.
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wll dissolve in ethyl acetate, lipids are highly soluble in non- polar organic solvents and I know that ethyl acetate is a moderately polar solvent im wondering why when we conducted the experiment it is soluble rather than insoluble.
Answer:
Moderately polar may mean slightly polar. Ethyl Acetate can only dissolve up to 3% water; so, its property is more of a non-polar solvent rather than a polar solvent. It is then not surprising that your oils are miscible with it.
Ethyl acetate is non-polar as there is no net dipole action within the molecule due to resonance in carboxyl group.
Since ethyl is non-polar, it is surely miscible with non-polar compounds like oils.
Ethyl acetate is a moderately polar solvent that has the advantages of being volatile, relatively non-toxic, and non-hygroscopic. It is a weak hydrogen bond acceptor, and is not a donor due to the lack of an acidic proton.
Ref: http://en.wikipedia.org/wiki/ethyl_aceta...
Oils are the result of the hydrolysis of fats. Fats are trigycerides with the following structure:
CH2O2C--------
CHO2C-------------- + NaOH + Heat -->
CH2O2C---------------
CH2OH + HOOC--------
CHOH + HOOC--------------
CH2OH + HOOC---------------
the three carboxylic acids are called fatty acids - oils. They have a long nonpolar ends and a polar COOH end that can H-bond with ethyl acetate, which is why ethyl acetate can dissolve the oils.
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