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{{otherpeople|Arthur Noyes}}
{{more footnotes|date=March 2013}}

{{Infobox scientist
| name              = Arthur Amos Noyes
| image             = Arthur A. Noyes 1923.png
| caption           = 
| birth_date        = {{birth date|1866|9|13|mf=y}}
| birth_place       = [[Newburyport, Massachusetts]], U.S.
| death_date        = {{death date and age|1936|6|3|1866|9|13|mf=y}}
| death_place       = [[California]], U.S.
| field             = [[Chemistry]]
| work_institution  = [[MIT]]<br>[[Caltech]]
| alma_mater        = [[Massachusetts Institute of Technology]]<br>[[University of Leipzig]]
| doctoral_advisor  = [[Wilhelm Ostwald]]
| doctoral_students = [[Roscoe G. Dickinson]] <br/> [[Edgar Stanley Freed]] <br/> [[Richard Chace Tolman]]
| known_for         = [[Electrolytes]]
| prizes            = [[Gibbs Medal]] <small>(1915)</small><br>[[Davy Medal]] {{small|(1927)}}
| footnotes         = 
}}
[[File:Arthur Amos Noyes sketch 1931.png |thumb|1931 drawing of Arthur Amos Noyes]]

'''Arthur Amos Noyes''' (September 13, 1866 – June 3, 1936) was an American [[chemist]], inventor and educator, born in [[Newburyport]], Massachusetts, son of Amos and Anna Page Noyes, née Andrews.<ref>{{cite book|title=Who's Who in Science |publisher=Marquis |edition=First |year=1968}}</ref> He received a PhD in 1890 from [[Leipzig University]] under the guidance of [[Wilhelm Ostwald]].

He served as the acting president of [[MIT]] between 1907 and 1909 and as professor of chemistry at the [[California Institute of Technology]] from 1919 to 1936. "Although [the Noyes] laboratory at MIT was like an institute in its intramural funding (from Carnegie Institute of Washington and Noyes's patent royalties), Noyes recruited many of his disciples as undergraduates and took a deep interest in undergraduate engineering education, both at MIT and later at Caltech.<ref>{{Cite book|title=Partners in Science|last=Kohler|first=Robert E|publisher=UChicago Press|year=1991|location=Rockefeller Archive Center|pages=91}}</ref><ref>[[John Servos]], "The industrial relations of science: Chemical Engineering at MIT, 1900-1939", Isis, 71 (1980) 531-549.</ref> [[Roscoe G. Dickinson|Roscoe Gilkey Dickinson]] was one of his famous students.

Noyes was a major influence both on the educational philosophy of the core curriculum of Caltech as well as in the negotiations leading to the creation of the [[National Research Council (United States)|National Research Council]] along with [[George Ellery Hale]] and [[Robert Andrews Millikan|Robert Millikan]]. He also served on the board of trustees for Science Service, now known as [[Society for Science & the Public]], between 1921 and 1927.

Noyes was an elected member of the [[American Academy of Arts and Sciences]], the United States [[National Academy of Sciences]], and the [[American Philosophical Society]].<ref>{{Cite web |date=2023-02-09 |title=Arthur Amos Noyes |url=https://www.amacad.org/person/arthur-amos-noyes |access-date=2023-11-27 |website=American Academy of Arts & Sciences |language=en}}</ref><ref>{{Cite web |title=Arthur A. Noyes |url=https://www.nasonline.org/member-directory/deceased-members/20001604.html |access-date=2023-11-27 |website=www.nasonline.org}}</ref><ref>{{Cite web |title=APS Member History |url=https://search.amphilsoc.org/memhist/search?creator=Arthur+A.+Noyes&title=&subject=&subdiv=&mem=&year=&year-max=&dead=&keyword=&smode=advanced |access-date=2023-11-27 |website=search.amphilsoc.org}}</ref>

==Noyes–Whitney equation==
<!--'Noyes–Whitney equation' redirects here-->
Along with [[Willis Rodney Whitney]], he formulated the Noyes–Whitney [[equation]] in 1897, which relates the [[Rate (mathematics)|rate]] of [[solvation|dissolution]] of solids to the properties of the solid and the dissolution [[Solvent|medium]].  It is an important equation in [[pharmacy|pharmaceutical science]].  The relation is given by:

:<math>\frac{dW}{dt} = \frac{DA(C_{s}-C)}{L}</math>

Where:
*<math>\frac{dW}{dt}</math> is the rate of dissolution.
*A is the [[surface area]] of the solid.
*C is the concentration of the solid in the bulk dissolution medium.
*<math>C_{s}</math> is the concentration of the solid in the [[diffusion]] layer surrounding the solid.
*D is the [[diffusion coefficient]].
*L is the [[diffusion layer]] thickness.

==References==
{{Reflist}}
* "Arthur Amos Noyes: Sept. 69, 1866&nbsp;– June 3, 1936 (A biographical memoir)," in ''Biographical Memoirs,'' '''Vol. 31''', Columbia University Press (For the National Academy of Sciences of the United States), New York, 1958, pp.&nbsp;322–346.
* ''Dictionary of Scientific Biography,'' Charles Scribner's Sons, 1970–1990, '''vol. 10''', pp.&nbsp;156–157.
* ''Biog. Mem. Nat. Acad. Sci.,'' 1958, '''31''', pp.&nbsp;322–346.
* ''Proc. Welch Fdn. Conf.'' 1977, '''20''', pp.&nbsp;88–105.
* ''Science'' 1936, '''83''', pp.&nbsp;613–614.
* ''Science'' 1936, '''84''', pp.&nbsp;217–220.
* ''Sci. Monthly'' 1936, '''43''', pp.&nbsp;179–181.
* ''Ind. Eng. Chem.'' 1931, '''23''', pp.&nbsp;443–445.
* ''American Chemists and Chemical Engineers,'' Ed. W.D. Miles, American Chemical Society, 1976, pp.&nbsp;371–372.
*  ''Proc. Am. Acad. Arts Sci.'' 1940, '''74''', pp.&nbsp;150–155.

==External links==
* Noyes' Gibbs medal {{doi|10.1021/ie50077a043}}
* Arthur Amos Noyes&nbsp;– Key Participant [http://osulibrary.oregonstate.edu/specialcollections/coll/pauling/bond/people/noyes.html ''Linus Pauling and the Nature of the Chemical Bond: A Documentary History''] and [http://osulibrary.oregonstate.edu/specialcollections/coll/pauling/blood/people/noyes.html ''It's in the Blood!  A Documentary History of Linus Pauling, Hemoglobin, and Sickle Cell Anemia'']
* {{Biographical Memoirs|noyes-arthur-a}}
{{Presidents of the American Chemical Society}}
{{MIT presidents}}

{{Authority control}}

{{DEFAULTSORT:Noyes, Arthur Amos}}
[[Category:1866 births]]
[[Category:1936 deaths]]
[[Category:American chemists]]
[[Category:Presidents of the Massachusetts Institute of Technology]]
[[Category:California Institute of Technology faculty]]
[[Category:People from Newburyport, Massachusetts]]
[[Category:Proceedings of the National Academy of Sciences of the United States of America editors]]
[[Category:Massachusetts Institute of Technology alumni]]
[[Category:Members of the American Philosophical Society]]