chemical substance

https://doi.org/10.1351/goldbook.C01039
Matter of constant composition best characterized by the entities (molecules, formula units, atoms) it is composed of. Physical properties such as density, @R05240@, @E01926@, @M03821@ point etc. characterize the chemical substance.
Source:
Physical Chemistry Division, unpublished [Terms]
Citation: 'chemical substance' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.C01039 RIS BibTex EndNote
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Last revised: February 24, 2014