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Searching by Properties

Literature Searching

Quality of Data


Searching the Literature

Bibliographic databases (i.e., indexes) are vital for searching the primary literature, but they are not optimally designed for identifying property data contained within original documents. SciFinder (Chemical Abstracts) is by far the best index to consult, but others such as Inspec and Engineering Index can be helpful alternatives.


The SciFinder interface to the Chemical Abstracts database can be searched for documents since the late 19th century that may contain desired physical property information. If the data in question were the main topic of the article, values may even be shown in the abstract. But if the document noted the data in passing rather than as the main focus, the abstract and indexing may give no indication of its presence. The quality and thoroughness of CA's human indexing varied over the years, and was generally less consistent in the decades before 1960. Trying a search several different ways can increase certainty. You can search either by References or by Substances:


Start with the Research Topic query using a property name connected to the substance's Registry Number or common name.


dissociation constant OF 7778-77-0
heat formation AND 10045-86-0
enthalpy vaporization OF alumina



Start from the Explore Substances search:

  1. Search for a substance by Registry Number, molecular formula, name, or structure.
  2. Click "Get References" and retrieve references from all years.
    Selecting "Properties" from the "roles" pop-up menu will retrieve only post-1967 references. (The Properties role has not been retrospectively assigned to RNs before that date.) Since much fundamental property data was reported before that time, you should skip this menu and just get all references.
  3. Use the Refine tab to limit the results set using a property name.

Other Tools

ThermoLit star
A free tool from NIST-TRC that allows you to search precisely for references reporting desired property and substance-level data within the NIST SOURCE Data Archive, and then generate a PDF literature report as required by a number of data-focused journals. The Archive covers reports of pure compounds and binary and ternary mixtures. (Polymers, materials with unspecified formulas, ions, and reaction properties are not included.)

Thermophysical Properties Research Literature Retrieval Guide