- THE ECDYSONE HANDBOOK
Its aim is to provide general data on all natural ecdysteroids described so far. Each data sheet contains (whenever available) spectroscopic (UV, IR, MS and NMR) and chromatographic data together with a few selected general references.
chemistry data exchange systems
solutions for - buy/sell chemistry data - peer to peer chemistry data exchange
FLOGEN Technologies Inc.
Scientific research and consulting in chemistry, metallurgy, environment, information technology, business administration
MatWeb, The Materials Database
The heart of MatWeb is a searchable database of material data sheets, including property information on thermoplastic and thermoset polymers such as ABS, nylon, polycarbonate, polyester, polyethylene and polypropylene; metals such as aluminum, cobalt, copper, lead, magnesium, nickel, steel, superalloys, titanium and zinc alloys; ceramics; plus semiconductors, fibers, and other engineering materials.
Molar heat capacity, entropy, and standard enthalpy of formation values for selected elements and compounds. Data are given at 100 degree intervals from 200 to 3000 K, and also summarized for all species at 298 K.
Marine Minerals Bibliography and Geochemical Database
A computerized bibliography and geochemical database on offshore marine mineral deposits. Primarily contains chemical analyses of present-day marine deposits of ferromanganese nodules and crusts (more than 140,000 analyses), but also includes some data for heavy minerals (approximately 1400 analyses). Analyses can be downloaded from the website or ordered on a CD.
Nanogen Index 2
Offers a book containing data on over 3000 pesticides and other environmental contaminants.
OECD/NEA Thermochemical Data Base Project
International effort of the Nuclear Energy Agency, a sub-agency within the Organisation for Economic Co-operation and Development. Chemical thermodynamic data on selected elements and compounds of concern in radioactive waste disposal, particularly uranium, neptunium, plutonium, americium, and technetium. Only Gibbs energies, enthalpies, entropies and heat capacities are provided. Registration is required, and some areas of the website are restricted to group members only.
Two downloadable databases, provided by the International Union of Geological Sciences. The igneous database can be downloaded in ASCII form or as a Microsoft Access database; the sedimentary database can be downloaded only in Microsoft Access form. Both databases can also be accessed on-line via browser.