In chemistry, a mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to the physical combination of two or more substances on which the identities are retained and are mixed in the form of alloys, solutions, suspensions, and colloids.
Mixtures are the product of a mechanical blending or mixing of chemical substances like elements and compounds, without chemical bonding or other chemical change, so that each ingredient substance retains its own chemical properties and makeup. Despite that there are no chemical changes to its constituents, the physical properties of a mixture, such as its melting point, may differ from those of the components. Some mixtures can be separated into their components by physical (mechanical or thermal) means. Azeotropes can be considered as a kind of mixture which usually pose considerable difficulties regarding the separation processes required to obtain their constituents (physical or chemical processes or, even a blend of them).
Read more about Mixture: Examples of Mixtures, Physics and Chemistry
Famous quotes containing the word mixture:
“The first place he went into was the Royal Exchange .... where men of all ages and all nations were assembled, with no other view than to barter for interest. The countenances of most of the people showed they were filled with anxiety; some indeed appeared pleased, but yet it was with a mixture of fear.... [David] resolved to stay no longer in a place where riches were esteemed goodness, and deceit, low cunning, and giving up all things to the love of gain were thought wisdom.”
—Sarah Fielding (1710–1768)
“Nature’s law says that the strong must prevent the weak from living, but only in a newspaper article or textbook can this be packaged into a comprehensible thought. In the soup of everyday life, in the mixture of minutia from which human relations are woven, it is not a law. It is a logical incongruity when both strong and weak fall victim to their mutual relations, unconsciously subservient to some unknown guiding power that stands outside of life, irrelevant to man.”
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“We are all such accidents. We do not make up history and culture. We simply appear, not by our own choice. We make what we can of our condition with the means available. We must accept the mixture as we find it—the impurity of it, the tragedy of it, the hope of it.”
—Saul Bellow (b. 1915)