Saturday, March 13, 2010

Miscibility


Miscibility is a term commonly used in chemistry that refers to the property of liquids to mix in all proportions, forming a homogeneous solution. In principle, the term applies also to other phases (solids and gases), but the main focus is on the solubility of one liquid in another. Water and ethanol, for example, are miscible since they mix in all proportions.

By contrast, substances are said to be immiscible if in any proportion, they do not form a solution. For example, diethyl ether is fairly soluble in water, but these two solvents are not miscible since they are not soluble in all proportions.

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