Periodic Table Live! allows you to explore a broad range of information about the elements and their reactions, properties, structures, and histories.
The Royal Society of Chemistry's interactive periodic table features history, alchemy, podcasts, videos, and data trends across the periodic table. Click the tabs at the top to explore each section. Click each element to read detailed information
ChemSpider, a chemical database from the Royal Society of Chemistry, provides the most complete collection of free chemical structure information.
The NIST Chemistry WebBook provides thermochemical, thermophysical, and ion energetics data compiled by the National Institute of Standards and Technology (NIST) under the Standard Reference Data Program.
The ChemExper Chemical Dictionary is a commercial availability source that contains basic properties and spectra, as well as materials safety data sheets.
The EPA's Green Chemistry Green Chemistry guide has resources, reference material, and funding information.
Minnesota's Department of Natural Resources provides water chemistry data.
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