About the SGTE Substances Database SSUB7

The SSUB7 SGTE Substances Database is a large thermochemical database containing 5985 pure condensed compounds or gaseous species. This database is used in applications such as alloy design and engineering, inorganic materials, gas phase chemistry, and solid-melts-aqueous-gas interactions.

The SSUB7 database by itself is particularly useful for:

  • Tabulations of thermochemical data.
  • Computations and tabulations of reactions and equilibrium constants.
  • Computations of solid-gas equilibria in multicomponent systems (with no solid solutions), such as CVD calculations, potential diagram calculations, high-temperature corrosion calculations, and so forth.

This database is also extremely useful whenever it is necessary to append additional data for some compound phases and gaseous phase to a multicomponent heterogeneous interaction system that has been defined with uses of some other specific solid/liquid solution and/or compound databases for e.g. steels/Fe-alloys, Ni-based superalloys, Ti-/TiAl-/Al-/Mg-/Cu-/Zr-/...-based alloys, complex oxides/sulfides/nitrides/... solutions, slag, molten salts, Au-/Ag-/Cu-/Sn-based solders, noble metal alloys, semi-/super-conductors, ceramics, nuclear materials, minerals, aqueous solutions, and organic substances/solutions, among others, in various advanced applications of material systems and material processes.

Go to the General Alloys and Pure Substances page on our website where you can access PDFs of the SGTE technical information documents and learn about the compatible kinetic database.

Included Elements (101)

Ac

Ag

Al

Am

Ar

As

At

Au

B

Ba

Be

Bi

Br

C

Ca

Cd

Ce

Cf

Cl

Cm

Co

Cr

Cs

Cu

Dy

Er

Es

Eu

F

Fe

Fm

Fr

Ga

Gd

Ge

H

He

Hf

Hg

Ho

I

In

Ir

K

Kr

La

Li

Lu

Mg

Mn

Mo

N

Na

Nb

Nd

Ne

Ni

Np

O

Os

P

Pa

Pb

Pd

Pm

Po

Pr

Pt

Pu

Ra

Rb

Re

Rh

Rn

Ru

S

Sb

Sc

Se

Si

Sm

Sn

Sr

Ta

Tb

Tc

Te

Th

Ti

Tl

Tm

U

V

W

Xe

Y

Yb

Zn

Zr
D

T

                  

Included Phases

3388 condensed stoichiometric compound phases and one huge gaseous mixture phase are available in the SSUB7 database. The gaseous mixture phase (containing 2597 gaseous species) is the only solution phase in the database, and it is treated as ideal (in both EOS and mixing behaviors) at all temperatures, pressures, and compositions.

Assessed Systems

The SSUB7 database contains assessed thermochemical data for 5985 substances (3388 condensed compounds and 2597 gaseous species) within a chemical framework of 99 elements (and 2 hydrogen isotopes).

The assessed thermochemical data for each compound or species consist of:

  • The enthalpy of formation at 298.15 K (relative to pure elements).
  • The entropy at 298.15 K (from third thermodynamic law integrations or estimations).
  • The temperature dependence of the heat capacity at constant pressure from 298.15 K up to the gaseous state.