IUPAC Provisional Recommendations

Provisional Recommendations are preliminary drafts of IUPAC recommendations.  These drafts encompass topics including terminology, nomenclature, and symbols.  Following approval, the final recommendations are published in IUPAC’s journal Pure and Applied Chemistry (PAC) or in IUPAC books. During the commentary period for Provisional Recommendations, interested parties are encouraged to suggest revisions to the recommendation’s author. 

Terminology of Polymers in Advanced Lithography

Comments by 31 May 2020

End-of-line Hyphenation of Chemical Names

Comments by 31 May 2020

Glossary of Methods and Terms used in Surface Chemical Analysis

Comments by 30 April 2020


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Journal + Issues

Chemistry International is the newsmagazine of the International Union of Pure and Applied Chemistry (IUPAC). News about IUPAC, its chemists, its publications, its recommendations, its conferences and the work of its commissions and committees is published bimonthly in CI.