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    • NIST Web Thermo Tables (WTT) - Lite Edition - SRD 202

    Metadata Updated: September 30, 2025

    The Web Thermo Tables (WTT) are a collection of critically evaluated thermodynamic property data for pure compounds with a primary focus on organics. These data were generated through dynamic data analysis, as implemented in the NIST ThermoData Engine software package. Also included are some critically evaluated data from the historical TRC Thermodynamic Tables archive. The Lite Edition is a subset of the data for commonly-used pure compounds. For the full data set please see the Professional Edition (http://www.nist.gov/srd/nistwebsub3.cfm)

    Access & Use Information

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

    Downloads & Resources

    References

    http://wtt-lite.nist.gov/wtt-lite/help/toc.html

    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 FDB5909746935200E043065706813E54155
    Language en
    Data Last Modified 2012-01-01 00:00:00
    Rights This is a paid resource. Price depends on the number of users licensed. Ordering information is linked to from the main page.
    Category Standards:Reference data
    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 36e1759f-4996-4454-978e-15428709ede6
    Harvest Source Id bce99b55-29c1-47be-b214-b8e71e9180b1
    Harvest Source Title Commerce Non Spatial Data.json Harvest Source
    Homepage URL https://www.nist.gov/srd/nist-standard-reference-database-202-web-thermo-tables-wtt-lite-edition
    License https://www.nist.gov/open/license
    Program Code 006:052
    Related Documents http://wtt-lite.nist.gov/wtt-lite/help/toc.html
    Source Datajson Identifier True
    Source Hash aa816cc612f95266e6a4ce18a836c683a731556f6018290717c241208f9afae5
    Source Schema Version 1.1

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