Thermophysical and Thermochemical

NIST has a long history as the source for reliable thermochemical data starting from the 1920s with the International Critical Tables. The tradition continues as new NIST databases on thermochemical properties of inorganic and small organic molecules gain acceptance.

NIST thermochemical databases are available both in convenient PC formats and as online systems, notably the NIST Chemistry WebBook which has extensive thermochemical data for over 7,000 organic and small inorganic compounds. It also has reaction thermochemistry data for over 8,000 reactions and ion energetics data for over 16,000 compounds.

The codes in the list below have the following meanings:

NIST Critically Selected Stability Constants of Metal Complexes, PC, DG*
NIST Chemistry WebBook, Online, DG*
Polycyclic Aromatic Hydrocarbon Structure Index, Online, DG*
Electron Interactions with Plasma Processing Gases, Online, DG*

NIST/ThermoData Engine103a - Pure Compounds, PC,DG *
NIST/ThermoData Engine 103b - Pure Compounds and Binary Mixtures PC,DG *
NIST/TRC Ideal Gas Database, PC, DG*
NIST/TRC Ionic Liquids Database, Online DG*
NIST Web Thermo Tables, Version Lite, Online* Subscription*
NIST Web Thermo Tables, Version Professional, Online * Subscription*

NIST ITS-90 Thermocouple Database, Online, DG*
Database of Thermophysical Properties of Gases Used in the Semiconductor Industry, Online,DG*
Thermodynamics of Enzyme Catalyzed Reactions, Online, DG*

NIST Reference Fluid Thermodynamic and Transport Properties, PC DG*
NIST Thermophysical Properties of Hydrocarbon Mixtures, PC, DG*
NIST/ASME Steam Properties Database, PC, DG*