In Chemistry, What Is Miscibility?
Miscibility is the ability of two liquids to mix with each to form a homogeneous solution. Water and ethanol, for example, are miscible. They can be mixed in any proportion, and the resulting solution will be clear and show only one phase. Oil and water, on the other hand, are immiscible. A mixture of vegetable oil and water will always separate into two layers or phases, and won’t dissolve in each other. Miscibility is often expressed as a wt/wt%, or weight of one solvent in 100 g of final solution. If two solvents are totally miscible in all proportions, their miscibility is 100%. Other solvents are only partially miscible, meaning that only some portion will dissolve in water.
