ThermoDex contains annotated bibliographic records that describe compilations of thermodynamic and physical property data for chemical compounds and other substances. Most are printed books; a few are freely available Web-based databases. ThermoDex is a "finding aid" designed to save you time in searching through numerous handbooks you might have in your library or lab. It enables you to enter both a type of compound and a property, and it returns a list of handbooks that might contain these data. The actual data are not reproduced in ThermoDex. All such data are copyrighted by the original publishers. Most of the books indexed are in the reference collection in the Mallet Chemistry Library at the University of Texas.
Both well-known and obscure sources are included, and they represent a wide selection of property and compound-type information. There is certainly overlap among sources; some thermodynamic data are relatively common and easy to find, while other properties are much more difficult. In any case, ThermoDex should not be your last resort in your quest for hard-to-find data. A more general overview of locating thermodynamic information, with links to a variety of free and licensed databases, can be found in the library's guide to FindingThermodynamic Information.
At present ThermoDex does not index:
- Standard one-volume handbooks
- Well-known standards such as the CRC Handbook of Chemistry and Physics, Perry's Chemical Engineers Handbook, and the International Critical Tables are not indexed because they are widely held in libraries, available online by subscription, and easy to check separately. They should be your first stop if the data you seek are not obscure.
- Proprietary (fee-based or licensed) online or locally mounted databases
- ThermoDex focuses on printed books and freely available web resources. Databases that require a paid subscription or charge search fees, such as DIPPR, TRC, Beilstein, Gmelin, STN, etc., should be searched separately where possible.
Indexing terms selected for ThermoDex are based on terms used in the individual resources. This terminology is not always consistent across resources and over time. In some cases ThermoDex imposes consistency. For example, the commonly used term "enthalpy of xxx" has always been translated to "heat of xxx". Sometimes synonyms are used concurrently, such as pK for Dissociation Constant. We welcome input from users who point out errors in this area, and we will correct them where possible.
The search page has two sections for your query. The first offers choices of Properties, and the second contains names and classes of Compounds. The check-boxes represent the most commonly sought data points, and you can check one or more of these. In addition, you can select one or multiple entries from the scroll-box. To select more than one item from the list, hold down the the Ctrl key (or the Apple key on a Macintosh) when clicking the mouse button. All terms you select within each section will be searched with a Boolean OR. You do not have to select terms from both sections if one is all you need.
IMPORTANT TIP: When selecting terms, particularly in the Compounds section, it's a good idea not to be too narrow. For instance, if you're looking for data on alcohols or common hydrocarbons, you should select those terms, and you should also select the more general term "Organic" from the list. Some sources indexed as containing data on a variety of organics will by definition also contain data for alcohols and hydrocarbons. Only those sources that focus primarily on alcohols or hydrocarbons, or have specific sections dedicated to such compounds, receive the narrower terms. Another example: if you're looking for data on argon, select both "argon" and the broader term "noble gases".
To see an alphabetical list of all handbooks included in ThermoDex, there is a link on the main search page.
The records for individual handbooks in ThermoDex contain the following data:
||Sometimes the name of the compiler or author is appended to the title, if the book is commonly known by that person's name.
||The publisher or origin of the work.
||A brief summary of the source's content, arrangement and indexing, with an occasional comment about the quality, authority, or usefulness of the item. Series designations are also found here.
||List of the property terms assigned to this resource.
||List of the compounds/compound types covered in this resource.
||The library call number used at the University of Texas. Libraries employing the Library of Congress classification system will often use the same or similar call number. In the case of Web-based resources, the URL is given in this field.
||Specific library location within the University of Texas at Austin Libraries. Most often this is "CHEM REF", meaning the book is located in the Reference Collection in the Mallet Chemistry Library. Other UT libraries (ENGIN, PMA, GEOL, etc.) are also represented. For the most current location information, search the title in UT's library catalog. "Web" in this field indicates a resource that is freely available on the Web.
|Year(s) of publication
||ISBNs are included for most books published since 1971. In the case of multivolume sets, the ISBN may be for the whole set, or for just the first volume.
||Accession number in the OCLC (WorldCat) online union catalog system, used by libraries around the world to catalog books and journals and share resources via Interlibrary Loan. Ask your librarian for further details on using OCLC numbers.
|Find in a Library
||This link executes a search in Open WorldCat, a public version of the OCLC WorldCat database of library holdings. This service shows you a list of libraries holding the book in question, and you can focus the results by locality and region by entering your zip code.
ThermoDex is an ongoing project of the University of Texas Libraries. Content is managed by the Mallet Chemistry Library. Web design and technical development are by the Digital Library Services Division. While we make every effort to ensure the accuracy of this information, we welcome comments, suggestions, and error reports from users. Please send all comments to "Ask a Librarian".