Chemistry: 1. General Chemistry

A classic encyclopedia of the chemical elements, arranged in the periodic table. Click on any element to see more information, or choose types of properties at the top to see specific property information when you click.

An interactive periodic table with a very nice display. Select a property and use the slider to see which elements match your criteria. Nice display of orbital configurations, as well.

More than 1,600 Fact Sheets with information on health hazards, exposure limits, personal protective equipment, proper handling, first aid, and emergency procedures for fires and spills for known hazardous substances.

List basic chemical hazard data for thousands of chemicals.

TOXNET has moved into the PubChem database. Databases on toxicology, hazardous chemicals, environmental health, and toxic releases have been integrated into other NLM databases. The above link is an index of where TOXNET subjects have been integrated. This link also features guides to help you find information using the new databases.

Use this page to find health and safety information submitted to EPA under the Toxic Substances Control Act (TSCA). This information is intended for individuals interested in learning more about chemicals that are manufactured or imported into the United States.

Compiled by the CalTech science librarian.