pure substance


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Related to pure substance: Homogeneous mixture

pure substance

[′pyu̇r ′səb·stəns]
(chemistry)
A sample of matter, either an element or a compound, that consists of only one component with definite physical and chemical properties and a definite composition.
References in periodicals archive ?
Lancaster will unveil a new look in the first quarter and seven new sun care products featuring complex Radical Protection Factor (RPF) with botanical extracts and pure substances to neutralize free radicals and protect the skin from cell damage and photoaging.
Because of differences in the way molecules stick to the column, mixtures become separated into their individual components and can be analysed further as pure substances.
When you start dealing with mixtures, most of what we're saying about pure substances doesn't hold up," Shallenberger says.
Thermal Properties of Pure Substances and Some Applications
The formulated a mathematical equation for the representation of the pressure-volume-temperature behaviour of pure substances and of mixtures.