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A chemical substance consisting of two or more pure substances (called mixture components or mixture ingredient) with chemical bonding between components being weaker than that of between molecules of components.

A list of all chemical substances constituting a mixture is called Mixture composition.

The chemical properties of mixtures may differ from those of any constituent components.

Unlike pure substances the mixtures in a state of Thermodynamic equilibrium may see various phases occupy a continuous area in PT Diagram (see for example Vapour Liquid Equilibrium).

Mixtures with two components are called Binary Mixtures and apart from a wide practical value they have a zoomed value in academic studies which help understand and model behaviour of all mixtures.

A mixture in a fluid state (liquid, gas or supercritical fluid) is called a fluid mixture.

In petroleum industry the most popular mixtures are hydrocarbons and water (H₂O).

See Also

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Natural Science / Chemistry / Chemical Substance

[ Pure substance ] [ Fluid Mixture ]

[ Mixture composition ]

[ Thermodynamic equilibrium ][ Vapour Liquid Equilibrium (VLE) ]