Call Number: History of Science Collection - Reference AE5 .E582
Publication Date: 1910-1911
11th ed. c.2 in Reference Room (AE5 .E58).
The most scholarly edition of Britannica, with all entries written by experts in their fields. Good for topical overviews.
This is often a great place to start for a broad search on a chemical or group of chemicals. Covers uses, production methods, and other information on industrial chemicals.
Encyclopedia of Associations: National Organizations of the U. S. by 
Van Nostrand's Scientific Encyclopedia by 
Kirk-Othmer Encyclopedia of Chemical Technology
Scientists and Inventors by