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Welcome to the NIST WebBook
The NIST Chemistry WebBook provides access to data compiled and distributed by NIST under the Standard Reference Data Program. You can search for data on specific compounds in the Chemistry WebBook b...
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NIST Chemistry WebBook
NIST reserves the right to charge for access to this database in the future. Last major update to the site: June 21, 2017. This site provides thermochemical, thermophysical, and ion energetics data ...
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Thermophysical Properties of Fluid Systems
Thermophysical Properties of Fluid Systems Accurate thermophysical properties are available for several fluids. These data include the following: Density Please follow the steps below to select the...
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A Guide to the NIST Chemistry WebBook
A Guide to the NIST Chemistry WebBook Peter J. Linstrom Introduction The NIST Chemistry WebBook provides users with easy access to chemical and physical property data for chemical species through the...
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Chemical Formula Search
CH2CH2 CH3CH (CH2)2 C2H*F? Search options (step 2) Exactly match the specified isotopes When checked, this option indicates that the search should match isotopes as specified in the search formula. F...
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Molecular Weight Search
Allow elements not specified in formula When checked, this option indicates that species containing elements not specified in the formula will also be matched. For example, a search for C2 will match...