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Cited by 53Chemical Thermodynamics and Molecular Structurethermodynamics and calorimetric analysesPhase Equilibria and Thermodynamics

Digitizing “The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI Units”

Open access
Reed, Janiel J.·2020·Journal of Research of the National Institute of Standards and Technology
DOI 10.6028/jres.125.007PMC PMC9097797
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Abstract

The NBS Tables of Chemical Thermodynamic Properties is a collection of thermodynamic properties, published in book form, consisting of 103 tables with 14 330 critically evaluated species. The tables were originally published as a series of NBS Technical Notes As a result of this work, the data is now available in a more accessible spreadsheet format. Enthalpy of formation, ΔfH°, Gibbs energy of formation, ΔfG°, entropy, S°, heat capacity at constant pressure, Cp°, all at 298.15 K, and the enthalpy difference, [H°(298) – H°(0)] are provided where known. Within this collection of data, there are no values given for transuranic elements, Np to Lr (Tables 77–87).

AI snapshot

Written from the paper’s full text.

TL;DR

This paper describes the digitization of the NBS Tables of Chemical Thermodynamic Properties, a highly cited collection of 103 tables covering 14,330 critically evaluated species, into accessible CSV and Excel formats. The resulting dataset provides formation enthalpies and Gibbs energies, entropies, heat capacities at 298.15 K, and enthalpy differences where known.

Key findings

  • The original NBS Tables comprise 103 tables with 14,330 critically evaluated species, originally published as NBS Technical Notes and now available in spreadsheet (CSV, Excel) format.
  • Provided quantities include enthalpy of formation ΔfH°, Gibbs energy of formation ΔfG°, entropy S°, heat capacity at constant pressure Cp°, all at 298.15 K, and the enthalpy difference [H°(298) − H°(0)], where known.
  • No values are given for transuranic elements, Np to Lr (Tables 77–87).
  • The dataset is publicly available at https://doi.org/10.18434/M32124, in compliance with the Open Government Data Act.

Methods

  • The book was digitized via optical character recognition (OCR) into a PDF; tables were copied and pasted into Microsoft Word, where column alignments and chemical formulas were fixed using the PDF as a guide.
  • Data were then copied into Excel and printed; using the original book as a guide, all tables were manually edited and corrected.
  • After editing, spreadsheet contents were checked with a Python script verifying state-identifier consistency and numeric format and range; corrected values from an erratum were included and marked with an asterisk, and these were checked manually due to their small number.

Limitations

  • The paper does not state explicit limitations. It notes that no values are provided for transuranic elements Np to Lr (Tables 77–87).
  • Evident from the text: the workflow relies heavily on manual editing and correction of OCR-derived data, which could introduce transcription errors, though a Python script and manual erratum checks were used to mitigate this.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.6028/jres.125.007

Cites

8 of 8 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

4 of 5 cited sources checked · 2 supported · 0 flagged · accuracy not yet measured

  • Premisecitation

    The Open Government Data Act requires open government data assets to be published as machine-readable data.

    “In compliance with the Open Government Data Act [3], which “requires open government data assets to be published as machine-readable data,” the NBS Tables are now accessible through CSV and Excel formats at https://doi.org/10.18434/M32124.”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [3] https://doi.org/10.6028/NBS.TN.270-4 source

      The paper’s “Additional information” section mentions Public Law 89-306 and standards for data elements and codes, but does not address the Open Government Data Act or a requirement to publish government data assets in machine-readable form. Searches for the Act and for machine-readable data, CSV, and Excel found no supporting passage; page numbers were not available in our copy. (LLM, conf=0.76)

      Experimental — accuracy not yet measured
  • Findingreasoning

    As a result of this work, the NBS Tables data is now available in accessible spreadsheet (CSV and Excel) formats.

    “As a result of this work, the data is now available in a more accessible spreadsheet format.”
    • Also stated in: § Impact · plain
      “In compliance with the Open Government Data Act [3], which “requires open government data assets to be published as machine-readable data,” the NBS Tables are now accessible through CSV and Excel formats at https://doi.org/10.18434/M32124.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim. 7
  • May combine two claims. 4

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductreasoning

    Due to the small amount of values from the erratum, they were checked manually.

    “Due to the small amount of values from the erratum [4], they were checked manually.”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [4] https://doi.org/10.6028/NBS.TN.270-5 source

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Study design and conductcitation

    An erratum was used to include corrected values in the data, which is indicated with an asterisk.

    “An erratum [4] was used to include corrected values in the data which is indicated with an asterisk.”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [4] https://doi.org/10.6028/NBS.TN.270-5 source

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    The NBS Tables were originally published as a series of NBS Technical Notes.

    “The tables were originally published as a series of NBS22 National Bureau of Standards, now NIST, National Institute of Standards and Technology. Technical Notes [2].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [2] https://doi.org/10.6028/NBS.TN.270-3 source

      The cited work is Part 3 of the NBS Technical Note series, supporting the identification of the tables with those notes. But the Additional information section (page unavailable) says its tables revise tables from the earlier NBS Circular 500, so this copy does not support the claim that the tables were originally published as Technical Notes. (LLM, conf=0.76)

      Experimental — accuracy not yet measured

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Findingnone given

    Within this collection of data, no values are given for transuranic elements, Np to Lr (Tables 77-87).

    “Within this collection of data, there are no values given for transuranic elements, Np to Lr (Tables 77-87).”
    Quote in the paperNot a substantial claim

  • May combine two claims.

    Findingown data

    The digitized dataset provides enthalpy of formation, Gibbs energy of formation, entropy, heat capacity at constant pressure (all at 298.15 K), and the enthalpy difference [H°(298) - H°(0)] where known.

    “Enthalpy of formation, ΔfH°, Gibbs energy of formation, ΔfG°, entropy, S°, heat capacity at constant pressure, Cp°, all at 298.15 K, and the enthalpy difference, [H°(298) - H°(0)] are provided where known.”
    Quote in the paperSubstantial claim

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Study design and conductown data

    After editing, the contents of the spreadsheet were checked using a Python script, with state identifiers checked for consistency and numeric values checked for format and range.

    “After editing, the contents of the spreadsheet were checked using a Python script. State identifiers were checked for consistency and numeric values were checked for format and range.”
    Quote in the paperNot a substantial claim

  • Classified as probably not a substantial claim.

    Study design and conductnone given

    Using the original book as a guide, all tables were manually edited and corrected.

    “Using the original book as a guide, all tables were manually edited and corrected.”
    Quote in the paperSubstantial claim

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    The NBS Tables of Chemical Thermodynamic Properties is a collection of thermodynamic properties, published in book form, consisting of 103 tables with 14,330 critically evaluated species.

    “The NBS Tables of Chemical Thermodynamic Properties [1] is a collection of thermodynamic properties, published in book form, consisting of 103 tables with 14 330 critically evaluated species.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [1] Wagman DD, Evans WH, Parker VB, Schumm RH, Halow I, Bailey SM, Churney KL, Nuttall RL (1982) The NBS tables of chemical thermodynamic properties. Selected values for inorganic and C1 and C2 organic substances in SI units. Journal of Physical and Chemical Reference Data 11:2. Available at https://srd.nist.gov/JPCRD/jpcrdS2Vol11.pdf
8 of 8

  • The paper relies on this without support.

    The NBS Tables of Chemical Thermodynamic Properties is one of the most highly cited works in the history of NBS/NIST and is still used and cited in the academic, scientific, and engineering areas.

    “The NBS Tables of Chemical Thermodynamic Properties [1] is one of the most highly cited works in the history of NBS/NIST and is still used and cited in the academic, scientific, and engineering areas.”
1 of 1

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Authors
Reed, J. J.
Affiliations
National Institute of Standards and Technology (US)
Corresponding author
Reed, Janiel J.
ORCID
Reed, Janiel J.
Venue
Journal of Research of the National Institute of Standards and Technology
Publisher
National Institute of Standards and Technology (NIST)
Published
2020-02-04
Volume
125
Pages
125007-125007
ISSN
  • 1044-677X (ISSN-L)
  • 2165-7254
DOI
10.6028/jres.125.007
PMC
PMC9097797
OpenAlex
W3004865363
Cited by
53
References
8
Citations by year
2026: 6 · 2025: 8 · 2024: 9 · 2023: 9 · 2022: 9 · 2021: 5 · 2020: 2 · 2017: 1 · 2013: 1
FWCI
2.43
Type
journal article
Language
en
Open access
Licence
public-domain
Locations
  • Journal of Research of the National Institute of Standards and Technology (publishedVersion, public-domain)
  • PubMed Central (publishedVersion, public-domain)
  • PubMed (publishedVersion)
  • National Institute of Standards and Technology (NIST) (submittedVersion, public-domain)
Funders
Material Measurement Laboratory
Topics
  • Physical Sciences › Chemistry › Organic Chemistry › Chemical Thermodynamics and Molecular Structure
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › thermodynamics and calorimetric analyses
  • Physical Sciences › Engineering › Biomedical Engineering › Phase Equilibria and Thermodynamics
Keywords
chemical thermodynamic properties, enthalpy of formation, Gibbs energy of formation, entropy, heat capacity at constant pressure, inorganic compounds, organic compounds

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Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-10-30.

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