Charles August Kraus (August 15, 1875 – June 27, 1967) was an American

chemist A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe th ...

. He was professor of chemistry and director of the chemical laboratories at

Clark University Clark University is a private research university in Worcester, Massachusetts. Founded in 1887 with a large endowment from its namesake Jonas Gilman Clark, a prominent businessman, Clark was one of the first modern research universities in th ...

, where he directed the Chemical Warfare Service during

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...

. Later, he became professor of chemistry and director of the chemical laboratories at

Brown University Brown University is a private research university in Providence, Rhode Island. Brown is the seventh-oldest institution of higher education in the United States, founded in 1764 as the College in the English Colony of Rhode Island and Providenc ...

, and was a consultant to the

Manhattan Project The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project w ...

to develop the atomic bomb. His research contributed to the development of the

ultraviolet lamp Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 nm (with a corresponding frequency around 30 PHz) to 400 nm (750 THz), shorter than that of visible light, but longer than X-rays. UV radiation i ...

, to

pyrex Pyrex (trademarked as ''PYREX'' and ''pyrex'') is a brand introduced by Corning Inc. in 1915 for a line of clear, low-thermal-expansion borosilicate glass used for laboratory glassware and kitchenware. It was later expanded to include kitchenwa ...

, and to the production of a leaded form of ethyl gasoline. He investigated the electrical conductance of liquid ammonia alkali metal solutions contributing to the development of the concept of solvated electron. He published more than 225 research papers. He was a member of the

National Academy of Sciences The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the Nat ...

, American Academy of Sciences,

American Philosophical Society The American Philosophical Society (APS), founded in 1743 in Philadelphia, is a scholarly organization that promotes knowledge in the sciences and humanities through research, professional meetings, publications, library resources, and communit ...

American Chemical Society The American Chemical Society (ACS) is a scientific society based in the United States that supports scientific inquiry in the field of chemistry. Founded in 1876 at New York University, the ACS currently has more than 155,000 members at all ...

American Physical Society The American Physical Society (APS) is a not-for-profit membership organization of professionals in physics and related disciplines, comprising nearly fifty divisions, sections, and other units. Its mission is the advancement and diffusion of k ...

American Association of University Professors The American Association of University Professors (AAUP) is an organization of professors and other academics in the United States. AAUP membership includes over 500 local campus chapters and 39 state organizations. The AAUP's stated mission ...

, Faraday Society,

Washington Academy of Sciences Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered on ...

, and an Honorary Fellow of the

Franklin Institute The Franklin Institute is a science museum and the center of science education and research in Philadelphia, Pennsylvania. It is named after the American scientist and statesman Benjamin Franklin. It houses the Benjamin Franklin National Memori ...

Awards

He was awarded several medals from the

, including the

Priestley Medal The Priestley Medal is the highest honor conferred by the American Chemical Society (ACS) and is awarded for distinguished service in the field of chemistry. Established in 1922, the award is named after Joseph Priestley, the discoverer of oxygen ...

in 1950. He was awarded the

Franklin Medal The Franklin Medal was a science award presented from 1915 until 1997 by the Franklin Institute located in Philadelphia, Pennsylvania, U.S. It was founded in 1914 by Samuel Insull. The Franklin Medal was the most prestigious of the various awar ...

in 1938, the

Navy Distinguished Public Service Award The Navy Distinguished Public Service Award, established in 1951, is an award presented by the U.S. Secretary of the Navy to civilians for specific courageous or heroic acts or exceptionally outstanding service of substantial and long-term benefi ...

in 1948, and the

Willard Gibbs Award The Willard Gibbs Award, presented by thChicago Sectionof the American Chemical Society, was established in 1910 by William A. Converse (1862–1940), a former Chairman and Secretary of the Chicago Section of the society and named for Professor Jo ...

in 1935.

References

*Mitchell, Martha. ''Encyclopedia Brunoniana''. 1993. Retrieved January 1, 2007 fro

* John Servos, Servos, John W.
''Physical chemistry from Ostwald to Pauling : the making of a science in America''
Princeton, N.J. : Princeton University Press, 1990.

External links

National Academy of Sciences Biographical Memoir
Kraus, Charles A. 1875 births 1967 deaths Recipients of the Navy Distinguished Public Service Award Members of the United States National Academy of Sciences University of Kansas alumni Massachusetts Institute of Technology alumni Brown University faculty Fellows of the American Physical Society {{US-chemist-stub