MSDS/Safety Links Many chemical companies provide online MSDS for their products.
http://www.ilpi.com/msds/index.html	Where to find MSDS on the Internet. This site includes links for 100 free MSDS sites, FAQ, regulations, and searching. The site includes a "Demystifier" page into which you paste in an MSDS to get hyperlinked explanations of MSDS terms.  A glossary of MSDS terms is found at http://www.ilpi.com/msds/ref/.
http://siri.uvm.edu/msds  or http://hazard.com/msds/	The Vermont SIRI (Safety Information Resources on the Internet) MSDS collection. with a searchable database.
http://physchem.ox.ac.uk/MSDS/#MSDS	Chemical and Other Safety Information from The Physical and Theoretical Chemistry Laboratory, Oxford University.  The top heading provides a variety of links. Click on the MSDS link and use the alphabetized links to locate the MSDS. Links to a Chemical Safety Database Searcher.
http://www.atsdr.cdc.gov/toxfaq.html	Agency for Toxic Substances and Disease Registry (ATSDR) ToxFAQs have information for hazardous waste site contaminants.
http://www.sigmaaldrich.com/Area_of_Interest/ Laboratory_Essentials/Virtual_Lab.html	Sigma Aldrich now has a Virtual Stockroom. Once you enter this stockroom, you may go to EquipBasics, BioBasics, or LabBasics (for chemistry). In the LabBasics section, you may click on common lab chemicals, such as Acids and Bases. Under Acids and Bases, for example, you have access to a long list of common lab acids and bases. For each of these, the site provides chemical information, properties, and safety notes. You may click to download the MSDS (but first have to register), product information or specification sheets. You may also request the free Sigma-Aldrich catalog which itself is a handy tool to have in the lab.
http://msds.ehs.cornell.edu/msdssrch.asp	The Cornell Department of Environmental Health and Safety MSDS site allows for search by name or formula.
http://www.osha.gov/SLTC/ hazardoustoxicsubstances/standards.html	US Department of Labor OSHA Standards for Hazardous and Toxic Substances.
http://www.osha.gov/SLTC/carcinogens/standards.html	US Department of Labor OSHA Standards for Carcinogens. Provides a list of 52 carcinogens classified as carcinogens or potential carcinogens by the National Toxicity Program .
http://www.osha.gov/SLTC/metalsheavy/index.html	US Department of Labor OSHA Safety and Health Topics for Toxic Metals--6 metals.
http://chem1403.ath.cx:82/safety/index.php	Chemical Safety Index with links to MSDS, Lab Safety, online chemical hygiene plans, government agencies, and more.
http://www.labsafety.org/	Laboratory Safety Institute, a non-profit educational organization devoted to lab safety. Its founder, Jim Kauffman, maintains the Labsafety-L listserv.