Search results

...y accepted set of reference conditions. For example, as noted above, the [[International Union of Pure and Applied Chemistry]] (IUPAC) now defines the standard reference conditions as 0 °C and 100 kP *IUPAC: International Union of Pure and Applied Chemistry

...token atoms.<ref name=iupacdef97>[http://old.iupac.org/goldbook/C01022.pdf International Union of Pure and Applied Chemistry (IUPAC) definition of chemical element.] From the website of the IUPAC's '' ...''vide infra'').<ref>'''Note:'''&nbsp;'Substance' remains undefined by the International Union of Pure and Applied Chemistry (IUPAC), but chemists typically define it in terms of matter, or imply matt

...ng [[Organic compound|organic chemical compound]]s as recommended by the [[International Union of Pure and Applied Chemistry]] (IUPAC).<ref>{{cite book |author= The Commission on the Nomenclature of O

|'''alumínium'''<ref>The International Union of Pure and Applied Chemistry recommends the British spellings '''alumínium''' and '''caêsium''', but A