The International Union of Pure and Applied Chemistry is a non-governmental organization established in 1919 as the successor of the International Congress of Applied Chemistry for the advancement of chemistry. Its members are national chemistry societies. It is the recognized world authority in developing standards for the naming of the chemical elements and their compounds, through its Interdivisional Committee on Nomenclature and Symbols (IUPAC nomenclature). It is a member of the International Council for Science (ICSU). Many IUPAC publications are available on the Internet
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