Thermodynamic Databases

• Thermochemical Database Project (TDB) at the Nuclear Engery Agency (NEA) of OECD
• SUPCRT92 interactive version from Arizona State University, for downloading the data base see here
• EPA - Data Systems and Software at U.S. Environmental Protection Agency
• Chemistry WebBook
  - NIST Standard Reference Database Number 69, July 2001 Release
  (thermochemical, thermophysical, and ion energetics data compiled by NIST under the Standard Reference Data Program)
• CODATA key values for thermodynamics and the CODATA internationally recommended values of the fundamental physical constants
• IUPAC Stability Constants Database by Academic Software
• ThermoML - an XML-based IUPAC standard for storage and exchange of experimental thermophysical and thermochemical property data
• Common Thermodynamic Database Project of the École Nationale Supérieure des Mines de Paris (seems to be down)
• Nagra/PSI Chemical Thermodynamic Data Base 01/01
• Thermodynamic database MALT2 from the Japan Society of Calorimetry and Thermal Analysis
• Thermodynamic Data and Property Calculation Sites on the Web
  Meta list at UIC Thermodynamics Research Laboratory - University of Illinois at Chicago
• FreeGs thermodynamic database project from Geoscience Australia