Web Thermo Tables - an On-Line Version of the TRC Thermodynamic Tables - PubMed (original) (raw)
Web Thermo Tables - an On-Line Version of the TRC Thermodynamic Tables
Andrei Kazakov et al. J Res Natl Inst Stand Technol. 2008.
Abstract
It has long been understood that availability of thermophysical and thermochemical property data is vital to scientific research and industrial design. For over 65 years, the Thermodynamics Research Center (TRC) has been publishing tables of critically evaluated data covering physical and thermodynamic properties of pure compounds, TRC Tables-Hydrocarbons and TRC Tables-Non-Hydrocarbons. Over their long history, the TRC Tables have always been valued as a reputable source of evaluated thermophysical and thermodynamic data. To facilitate more flexible, convenient, and up-to-date access to the data, here, we present the release of the on-line version of the TRC tables, Web Thermo Tables (WTT). Presently, WTT contains data for 7838 compounds and over 950,000 evaluated data points. The tabulated information includes critical properties, vapor pressures and boiling temperatures, phase transition properties, volumetric properties, heat capacities and derived properties, transport properties, reaction state-change properties, as well as index of refraction, surface tension, and speed of sound. Various search options and data plotting capabilities are provided via the Web interface. WTT are distributed through the NIST Standard Reference Data Program [1].
Keywords: database; thermophysical properties; web access.
Figures
Fig. 1
Statistical distribution of evaluated property values (data points) stored in the TRC Tables with respect to the molecular weight of the compound.
Fig. 2
Schematic of WTT interface information flow.
Fig. 3
Main search page of the WTT interface.
Fig. 4
An example of data display for a single-valued property search (critical temperature).
Fig. 5
An example showing the result of compound search by chemical formula (“C2H6O”). A list consisting of two matching compounds (ethanol and dimethyl ether) is presented.
Fig. 6
Tabular property display for a selected compound resulting from the selection of “dimethyl ether” for the case shown in Fig. 5.
Fig. 7
An example of expanding hierarchical panel structure for the case shown in Fig. 6.
Fig. 8
(a) An example of the specific property data presentation for a given compound when the data points are given as a function of an independent variable (temperature in this example); (b) An illustration of plotting capabilities for the case shown in Fig 8a.
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References
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