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    • NIST-JANAF Thermochemical Tables - SRD 13

    Metadata Updated: September 30, 2025

    The Fourth Edition to the NIST-JANAF Thermochemical Tables has been assembled under the sponsorship of the Standard Reference Data Program at the National Institute of Standards and Technology. It contains tables of recommended temperature-dependent values for the standard enthalpy of formation, Gibbs (free) energy of formation, the logarithm of the equilibrium constant of formation, the heat capacity, entropy, enthalpy, and Gibbs energy function for 48 elements and many of their compounds.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    References

    https://janaf.nist.gov/pdf/JANAF-FourthEd-1998-1Vol1-Intro.pdf

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date September 30, 2025
    Data Update Frequency irregular

    Metadata Source

    Harvested from Commerce Non Spatial Data.json Harvest Source

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date September 30, 2025
    Publisher National Institute of Standards and Technology
    Maintainer
    Identifier ECBCC1C1301D2ED9E04306570681B10735
    Language en
    Data Last Modified 2013-01-01 00:00:00
    Category Standards:Reference data, Chemistry:Thermochemical properties
    Public Access Level public
    Data Update Frequency irregular
    Bureau Code 006:55
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id fd52cd8e-ef1e-4ae6-9626-05e20607424d
    Harvest Source Id bce99b55-29c1-47be-b214-b8e71e9180b1
    Harvest Source Title Commerce Non Spatial Data.json Harvest Source
    Homepage URL https://janaf.nist.gov/
    License https://www.nist.gov/open/license
    Program Code 006:052
    Related Documents https://janaf.nist.gov/pdf/JANAF-FourthEd-1998-1Vol1-Intro.pdf
    Source Datajson Identifier True
    Source Hash dc4f61df0c5214587e67abc87282cca9c9b463f1261491a015b070197ebf6cd4
    Source Schema Version 1.1

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