Dictionaries/Encyclopedias

CHEMnetBase
Physics Encyclopedia
The Laws List

Safety
Household Products Database
What's under your kitchen sink, in your garage, in your  bathroom, and on the shelves in your laundry room?
Learn more about what's in these products, about potential health effects, and about safety and handling.

Materials Safety Datasheets
SIRI - Vermont
Interactive Learning Paradigms Incorporated

Alloy Phase Diagrams
ASM Alloy Phase Diagrams Center
The ASM Alloy Phase Diagrams Center allows subscribers to explore, search and view more than 32,500 binary and ternary phase diagrams and associated phase data for more than 6200 systems from their Web browsers.

Inorganic Materials Database (AtomWork)
The Inorganic Material Database aims to cover all basic crystal structure, x-ray diffraction, property and phase diagram data of inorganic and metallic materials from main literature sources.

Constants and Formulae
NIST Reference on Constants, Units, and Uncertainty
Conversion of Units
Guide for the Use of the International System of Units (SI)
Integrator - Do integrals via the web.

Flavornet
Flavornet is a compilation of aroma compounds found in human odor space.

Periodic Tables
Center for Synchrotron Radiation Research and Instrumentation
Chemical Elements.com
Chemicool
WebElements

Physical Properties
Acros Organics
ASU Libraries' Index to Physical, Chemical and Other Property Data
ChemSpider
DIPPR
International Critical Tables
Knovel Critical Tables
NIST's Web Book
Spectrum's
SUNY Buffalo's Materials Properties Locator Database
ThermoDex

Registry Numbers:
ChemSpider
ChemIndex Database

Spectra:
Acros Organics
LipidBank
NIST's Web Book
SDBS - Spectral Database for Organic Compounds
Sigma-Aldrich Chemical Catalog

(02/01/2012)