Links . Properties: Chemical, Physical
ChemFinder.Com
Free database includes: Chemical Structures: 2D structures & 3D models. Physical Properties; mp, bp, CAS RN, etc. Hyperlinks: Links to other websites with information about elements and compounds.
The Constants and Equations Pages
Reference resource for science.
Knovel.com
"The most comprehensive and reliable source of scientific and engineering information online. Engineers and scientists will be able to find technical information, data and analysis tools needed to answer questions, solve problems and spur productivity. The reference books currently available include: Handbook of Chemistry and Physics, Handbook of Chemical Vapor Deposition, Engineering Documentation Control Handbook, Handbook of Physical Vapor Deposition, Handbook of Deposition Technologies for Films/Coatings, and Perry's Deluxe."
Material Data Network
Materials information on the web, from Granta Design Ltd.
MatWeb
Searchable database of material data sheets.
MatWeb Metal and Alloy Composition Search
Platinum: e.g. Electrical Properties, Mechanical Properties, Optical Properties, Physical Properties, Thermal Properties.
matweb.com/search/SearchComp.asp
NIST
The National Institute of Standards and Technology is a federal technology agency that develops and promotes measurement, standards, and technology.
NIST Chemistry WebBook
Provides chemical and physical property data on over 40,000 compounds.
e.g. platinum: phase change data; reaction thermochemistry data; gas phase ion energetics data; ion clustering data; gas phase kinetics (on kinetics web site).
NIST Elemental Data Index
Provides access to the holdings of NIST Physics Laboratory online data organised by element.
physics.nist.gov/PhysRefData/...
e.g. platinum: atomic spectroscopic data; x-ray and gamma ray data; radiation dosimetry data; nuclear physics data; condensed matter physics data.
NIST Physical Reference Data
Research data.
http://physics.nist.gov/PhysRefData/
Visual Elements
e.g. platinum, www.chemsoc.org/viselements/...
WebElements
Chemistry's periodic table (periodic chart) of the elements on the WWW.
e.g. platinum, www.webelements.com/webelements/...