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Definition of Pure substance

Babylon English

substance that is not contaminated with another substance
Pure substance Definition from Science & Technology Dictionaries & Glossaries
General Chemistry Glossary
A sample of matter that cannot be separated into simpler components without chemical change . Physical changes can alter the state of matter but not the chemical identity of a pure substance. Pure substances have fixed, characteristic elemental compositions and properties.
Pure substance Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
In chemistry, a chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e. without breaking chemical bonds. It can be solid, liquid, gas, or plasma.

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