I  U  P  A  C

News & Notices

Organizations & People

Standing Committees


..Shortcut Access






Links of Interest

Search the Site

Home Page




Inorganic Chemistry Division


Number: 220/31/98

Title: Priority Claims Elements 110-112

Coordinator(s): Paul J. Karol - Access to list of members

Remarks: Joint IUPAP/IUPAC Working Party

Completion Date: 2001 - project completed

Objective: The IUPAC/IUPAP Joint Working Party is charged with examining the priority claims for elements 110, 111 and 112 ultimately leading to a Report of recommendations suitable for publication.

Progress: Documentation submitted via Professor Leigh has been thoroughly studied by the Working Party. Contact among the Working Party members has been mostly by electronic mail, although Nakahara and Karol were able to arrange to meet for several hours in Pittsburgh for a worthwhile debate. The recommendations are being drafted by the Chair for distribution among and input revisions from the members. These recommendations are governed by the previous criteria established and by application of discovery profile formats used by the 101-109 Transfermium Working Group to 110-112. Only very limited input from the Russian laboratory at Dubna has been secured.

In August 2000, a report to the Commission II.2 indicated that in accordance with the criteria for the discovery of elements, previously established (Pure Appl. Chem. 63(6), pp. 879-886, 1991), the WP was able to attribute the discovery of element 110 to the GSI at Darmstadt. Conclusive discovery of elements 111 and 112 had not yet been established by the WP. > see II.2 minutes

Project completed - IUPAC Technical Report entitled 'On the discovery of the elements 110-112' is published in Pure Appl. Chem. 73(6), pp. 959-967, 2001.
A later report 'On the Claims for Discovery of Elements 110, 111, 112, 114, 116, and 118' is published in Pure Appl. Chem. 75(10), pp. 1601-1611, 2003.

> link to the FAQs on the Chemical Elements

Last update: 2 October 2003

Z greater than 110 - submission invited to establish priorities for the discovery (posted 12 Oct 01)

Questions or Comments about this Project
Please contact the Coordinator


Page last modified 2 October 2003.
Copyright ©1997-2003 International Union of Pure and Applied Chemistry.
Questions or comments about IUPAC, please contact, the Secretariat.
Questions regarding the website, please contact web manager.