Consult the following Web site for links to Material Safety Data Sheets.
MSDS Online: Where to Find Material Safety Data Sheets on the Internet.
A Material Safety Data Sheet (MSDS) is designed to provide both workers and emergency personnel with the proper procedures for handling or working with a particular substance. MSDS's include information such as physical data (melting point, boiling point, flash point etc.), toxicity, health effects, first aid, reactivity, storage, disposal, protective equipment, and spill/leak procedures.
Some of these guides are more up to date than others. Because of extensive use of search engines, general guides to Web information are often not being maintained.