NIST Chemistry WebBook This site provides thermochemical, thermophysical, and ion energetics data compiled by NIST under the Standard Reference Data Program. Where tag might be a literal string or a pattern, and fmt is often called again on the elements of data. General Chemistry Online Various chemistry online learning tools, including glossary, articles, tutorials, survival guide, quizzes, and more. The function is defined by declarations like fmt] :=. To process the XMLObject, I usually use Cases (sometimes Position) to locate the desired elements and define a custom function to recursively process the data arguments as I wish. The attributes are Rules and the data are usually strings or XMLElements. for a few example CAS chemical identifiers casnrs = ] The site is used by scientists, engineers, educators and the general public. for geraniol, ) (note I use the NCI CADD cactus server to convert InChiKeys to molecular structures if NIST doesn't list the molecular structure).Į.g. The NIST Chemistry WebBook is a site on the Internet ( that provides convenient access to a variety of physical and chemical property data on well defined chemical species and reactions. I would like to retrieve information associated with a given CAS registry number (Chemical Abstracts Service nr) from the NIST webbook web site in Mathematica, using the provided API (e.g. And if you need any further guidance or assistance, dont hesitate to call our fabulous customer service representatives at 1- (800) 860-6272.
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