Modified Florence flask

Description (Brief):

This modified Florence flask is made from Pyrex glass. The Florence flask is characterized by a long neck and rounded bottom with a flat base. It is useful as a reaction vessel as well as for heating solutions.

Description (Brief)

Pyrex has its origins in the early 1910s, when American glass company Corning Glass Works began looking for new products to feature its borosilicate glass, Nonex. At the suggestion of Bessie Littleton, a Corning scientist’s wife, the company began investigating Nonex for bakeware. After removing lead from Nonex to make the glass safe for cooking, they named the new formula “Pyrex”—“Py” for the pie plate, the first Pyrex product. In 1916 Pyrex found another market in the laboratory. It quickly became a favorite brand in the scientific community for its strength against chemicals, thermal shock, and mechanical stress.

Description (Brief)


Description (Brief)

Dyer, Davis. The Generations of Corning: The Life and Times of a Global Corporation. Oxford, New York: Oxford University Press, 2001.

Description (Brief)

Estridge, Barbara H., Anna P. Reynolds, and Norma J. Walters. Basic Medical Laboratory Techniques. Cengage Learning, 2000.

Description (Brief)

Jensen, William B. “The Origin of Pyrex.” Journal of Chemical Education 83, no. 5 (2006): 692. doi:10.1021/ed083p692.

Description (Brief)

Kraissl, F. “A History of the Chemical Apparatus Industry.” Journal of Chemical Education 10, no. 9 (1933): 519. doi:10.1021/ed010p519.

Date Made: 1931-1959

Maker: Corning Incorporated

Location: Currently not on view

Subject: Science & Scientific Instruments


See more items in: Medicine and Science: Chemistry, Science Under Glass, Science & Mathematics


Exhibition Location:

Credit Line: Transfer from Department of Defense, U.S. Military Academy

Data Source: National Museum of American History

Id Number: CH.316436Catalog Number: 316436Accession Number: 223721

Object Name: Florence Flask with Side Connection

Physical Description: pyrex glass (overall material)Measurements: overall: 9 in x 4 1/2 in; 22.86 cm x 11.43 cmoverall: 8 7/8 in x 8 in x 5 1/4 in; 22.5425 cm x 20.32 cm x 13.335 cm


Record Id: nmah_2091

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.