Official Journal of the International Union of Pure and Applied Chemistry. As IUPAC's official journal, Pure and Applied Chemistry publishes the text of authoritative lectures delivered by prominent scientists at IUPAC symposia and specially commissioned review articles on important topics within the field. In addition, the Journal publishes the recommendations of the Union, technical reports on standardisation, recommended procedures, data compilations and collaborative studies. The readership of the journal includes all members of the International Union of Pure and Applied Chemistry.