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Why doesn't water dissolve oil?

Updated: 8/10/2023
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Wiki User

15y ago

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In chemistry molecules are either polar or non-polar - polar means the molecule has a separation of its electric charge to form a permanent dipole.

Water is a polar molecule - oil is not.

As far as solubility and miscibility goes "Like disolves like" - so a polar compound ie Sodium Chloride will disolve in water, while a non polar compound such as glutamine will not disolve in water.

However a non polar solvent ie ether will disolve glutamine but not sodium chloride.

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12y ago
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12y ago

no, you need a surfactant or other chemical solvent.

add. Alternatively you may make an emulsion of oil and water. But that differs from a solution.

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15y ago

Whil oil is slightly soluble in water, it is a nonpolar molecule while water is extremely polar. This means there is very little attraction between them and it is only sparingly soluble.

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Q: Why doesn't water dissolve oil?
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