Welcome to THEREDA

THEREDA (Thermodynamic Reference Database) is a joint project dedicated to the creation of a comprehensive, internally consistent thermodynamic reference database, to be used with suitable codes for the geochemical modeling of aqueous electrolyte solutions up to high concentrations.

This database is used for the geochemical modeling of processes in the near- and far-field of different host rock types, which are envisaged as potential sites for final repositories in Germany.

The project is being collectively planned and executed by the most relevant research institutions which work on the field of final disposal of radioactive waste (THEREDA-Partner).

News: Upgrade of 9th release and new data in 12th release

On May 07th and July 16th 2018, new data was released from the Thermodynamic Reference Database (THEREDA).

The new releases of data from the THEREDA database come with parameter files for the system

R-12: H₂PO₄⁻/HPO₄²⁻/PO₄³⁻ - Na⁺,K⁺,Mg²⁺,Ca²⁺ - Cl⁻,SO₄²⁻,CO₃²⁻ - H₂O(l)

R-09.1 (Upgrade): U(IV)/(VI) - Na⁺,K⁺,Mg²⁺,Ca²⁺ - Cl⁻,SO₄²⁻,CO₃²⁻ & H₂PO₄⁻/HPO₄²⁻/PO₄³⁻ - H₂O.

Valid range of temperature: 298.15 K

Supported codes: CHEMAPP, PHREEQC, Geochemist's Workbench

The released data represent only a small part of all data stored in THEREDA. As documentation, assessment, amendment and testing of the data is an ongoing process, there will be further releases in the future covering more elements, reactions and interactions.

Welcome to THEREDA

News: Upgrade of 9th release and new data in 12th release

Project Funding