The standard property surfaces provided in the database are presented as thermodynamically consistent models which can be used for such applications as custody transfer, calibrations and innovation, and design and optimization of processes involving pure fluids. Version 5.0 is a complete revision of the pure fluid database and it is based on the most accurate pure fluid equations currently available. The XPS Version 3.0 database gives easy access to the energies of many photoelectron and Auger-electron spectral lines. Resulting from a critical evaluation of the published literature, the database contains over 19,000 line positions, chemical shifts, doublet splittings, and energy separations of photoelectron and Auger-electron lines. A highly interactive program allows the user to search by element, line type, line energy, and many other variables.
Users can easily identify unknown measured lines by matching to previous measurements.
The February 2000 release of The NIST WebBook is the sixth edition of the NIST Chemistry WebBook . There are many avenues for searching the database. Structures are given for most species, as well as common and commercial names. You can search for data on specific compounds in the Chemistry WebBook based on name, chemical formula, CAS registry number, molecular weight, or selected ion energetics and spectral properties.