Thermochemical Database (TDB) Project News

This web page contains information about the latest developments in the TDB project that are of public interest.

12 December 2013

Volume 13a in the series, which is the first part of the review on the chemical thermodynamics of iron is now available. For more information on this review, consult the list of available publications.

Tables of selected formation and reaction data are also available for download.

   

1 April 2013

Volume 12 in the series, dealing with the chemical thermodynamics of tin is now available. For more information on this review, consult the list of available publications.

The first part of the review on iron is scheduled for publication in summer 2013.

The new phase of the TDB project, TDB-5, has been endorsed by the NEA standing committees on Radioactive Waste Management and Nuclear Science (Data Bank Executive Committee). The tentative start date for the new phase of the project is 1 February 2014.

   

15 November 2012

During its annual meeting on 13-14 November 2012, the members of the Management Board defined the programme of work for the next phase of the TDB Project (TDB-5) in view of the needs expressed by the participating organisations, and decided to further extend the mandate of the current phase by an additional year, in order to finalise the agreement for the next phase.

   

15 january 2012

The proceedings of the joint TDB and Sorption projects symposium “From Thermodynamics to the Safety Case,” held the 17-19 May 2010 are available. For more information, consult the list of available publications.

   

1 December 2010

Work has started for the three reviews included in the programme of work for Phase IV: the second part of the review on iron and the review on molybdenum and ancillary data, i.e., thermodynamic data for aqueous and solid species involving combinations of common ions, and some relevant minerals.

   
6 August 2009

Work is in progress on four main reviews included in the third and fourth phase of the TDB project. The reviews of Iron (Step 1) and Tin are almost in their final form and will soon be peer reviewed. They are expected to be published in 2010. Work on the reviews on Molybdenum and Auxiliary Data has started. Step 1 of the review of Iron covers the key species for Fe(II) and Fe(III), Step 2 will include others species and compounds of Iron. It will be started when the peer review process of Step 1 will be over.

During the meeting held on 2 April 2009 at NEA offices in Paris, France, the TDB IV Executive Group proposed the organisation of a combined symposium of the NEA TDB and Sorption Projects: From Thermodynamics to the Safety Case. The content and organisation was approved by the Management Board. The symposium will be held 17-19 May 2010 at the Akademie Hotel, Karlsruhe, Germany. Emphasis will be placed on illustrating and discussing the successful use of, and key challenges encountered when, applying thermodynamic models (and underlying databases) to problems of interest to the waste management community as a whole. Example topics will include

  • Application of thermodynamic models to key processes such as spent fuel dissolution
  • Approaches to modelling at elevated temperatures or high salinities
  • Treatments of uncertainty in thermodynamic data
  • Sensitivity analysis to identify key model parameters
  • Recommendations for best practice in modelling sorption onto intact rock.
   
27 January 2009

Chemical thermodynamics of Thorium (number 11 in the TDB Series) is released. For more information on this report, consult the list of available publications.
Work is in progress on three (out of four) Reviews of Phase IV:

  • Studies of inorganic species and compounds of Molybdenum (Mo),
  • Review of auxiliary data,
  • Update of the selected value database accrued during the previous phases of the project.
   
9 July 2008

The review of Thorium will be published in 2008. The review of Iron (stage I), covering the key species for Fe(II) and Fe(III), will proceed to the peer review stage. The review of Tin is well advanced and sections on solid and gases are now in the process of being peer reviewed. The review is expected to be ready for publication in 2009.

The new phase of the TDB project, TDB IV, was endorsed by the NEA Radioactive Waste Management Committee and the Data Bank Executive Committee in 2008. The goals of the new phase are to: review inorganic species and compounds of Iron (stage II); review inorganic species and compounds of Molybdenum; and compile auxiliary data and the selected value database developed during phases I to III. The fourth phase of the TDB project officially started on 1 February 2008. Fifteen participating organisations are involved in this new phase.

   
26 July 2007

The state-of-the-art report on the thermodynamics of solid solutions now available. For more information on this report, consult the list of available publications.

The review of thorium is scheduled for publication in autumn 2007. Those on Sn and Fe are scheduled for peer review during 2008.

The new phase of the TDB project, TDB IV, has been endorsed by the NEA standing committees on Radioactive Waste Managment and Nuclear Science (Data Bank Executive Committee). The tentative start date for the new phase of the project is 1 February 2008.

   
1 December 2006

Work is in progress on all four main reviews included in the third phase of the TDB project. The review of thorium is currently being peer reviewed and is expected to be ready for publication in 2007. The state-of-the-art report on the thermodynamics of solid solutions will be ready for publication in 2007. The review of tin is well advanced and sections on solid and gases are now ready for peer review. The review of Iron, covering the key species for Fe(II) and Fe(III), is expected to be ready for peer review during 2007.

During the meeting held on, 26-27 October 2006 at NEA offices in Paris, France, the TDB III Management Board approved a one year extension (from 1 February 2007 to 31 January 2008) of the current agreement and for planning to begin during 2007 for a new phase of the TDB project.

   
23 November 2005

Organics and Zirconium reviews released

Two further volumes, numbers eight and nine in the series, dealing respectively with the chemical thermodynamics of zirconium and selected organic ligands, are now available. For more information, please see the list of available publications.

Errata lists for the 2003 update and 2005 reviews of Ni and Se available

Files with errata lists are now available for the 2003 update as well as the 2005 reviews of Ni and Se. They can be downloaded from the corresponding entries in the list of available publications.

New database files

Please see also the updated ASCII files with the current NEA TDB Selected Values Database and ion-interaction coefficients. These new files take into account the new entries in the database for Zr and organics ligands as well as the errata for the previously published volumes.

   
20 April 2005

Nickel and selenium reviews now available

Two volumes, numbers six and seven in the series, dealing respectively with the chemical thermodynamics of nickel and selemium are now available. For more information, please see the list of available publications.

Please see also the updated ASCII files with the current NEA TDB Selected Values Database and ion-interaction coefficients.

   
20 October 2003

Existing reviews of U, Am, Tc, Np, Pu updated

The update on the chemical thermodynamics of uranium, neptunium, plutonium, americium and technetium is now available. For more information, please see the list of available publications.

   
  TDB selected values database updated
   
 

The updated TDB selected values for U, Np, Pu, Am and Tc are available as ASCII files.

The ion interaction coefficients have been added to the NEA TDB Selected Values Database and are available as ASCII files.

   
1 February 2003

TDB III starts

TDB III, the third phase of the TDB project has officially started on the 1st of February 2003. Fifteen participating organisations signed the agreement.

   

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Last reviewed: 17 December 2013