Arthur Amos Noyes

Arthur Amos Noyes

Born	September 13 1866(1866--) Newburyport, Mass., U.S.
Died	June 3 1936 (aged 69) California, U.S.
Residence	U.S.
Nationality	American
Field	Chemist
Institutions	MIT and Caltech
Alma mater	MIT and University of Leipzig
Academic advisor	Wilhelm Ostwald
Notable students	Roscoe G. Dickinson
Known for	Electrolytes
Notable prizes	Gibbs Medal (1915)

Arthur Amos Noyes (1866 – 1936) was a U.S. chemist and educator. He served as the acting president of MIT between 1907 and 1909. He received in PhD. in 1890 at Leipzig under the guidance of Wilhelm Ostwald. Roscoe Gilkey Dickinson was one of his famous students. Noyes served as Professor of Chemistry at the California Institute of Technology from 1919 to 1936. He was a major influence on the educational philosophy and the core curriculum of Caltech.

Noyes-Whitney Equation

Along with Willis Rodney Whitney, he formulated the Noyes-Whitney equation in 1897, which relates the rate of dissolution of solids to the properties of the solid and the dissolution medium. It is an important equation in pharmaceutical science. The relation is given by:

$\frac{dW}{dt} = \frac{DA(C_{s}-C)}{L}$

Where:

$\frac{dW}{dt}$ 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.
$C s$ 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

"Arthur Amos Noyes: Sept. 13, 1866-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. 322-346.
Dictionary of Scientific Biography, Charles Scribner's Sons, 1970-1990, vol. 10, pp. 156-157.
Biog. Mem. Nat. Acad. Sci., 1958, 31, pp. 322-346.
Proc. Welch Fdn. Conf. 1977, 20, pp. 88-105.
Science 1936, 83, pp. 613-614.
Science 1936, 84, pp. 217-220.
Sci. Monthly 1936, 43, pp. 179-181.
Ind. Eng. Chem. 1931, 23, pp. 443-445.
American Chemists and Chemical Engineers, Ed. W.D. Miles, American Chemical Society, 1976, pp. 371-372.
Proc. Am. Acad. Arts Sci. 1940, 74, pp. 150-155.

External links

Noye's Gibbs medal

Presidents of the Massachusetts Institute of Technology

William Barton Rogers (1862–1870, 1879–1881) • John Daniel Runkle (1870–1878) • Francis Amasa Walker (1881–1897) • James Crafts (1897–1900) • Henry Smith Pritchett (1900–1907) • Arthur Amos Noyes (acting 1907–1909) • Richard Cockburn Maclaurin (1909–1920) • Elihu Thomson (acting 1920–1921, 1922–1923) • Ernest Fox Nichols (1921–1922) • Samuel Wesley Stratton (1923–1930) • Karl Taylor Compton (1930–1948) • James Rhyne Killian (1948–1959) • Julius Adams Stratton (1959–1966) • Howard Wesley Johnson (1966–1971) • Jerome Wiesner (1971–1980) • Paul Edward Gray (1980–1990) • Charles Marstiller Vest (1990–2004) • Susan Hockfield (2004–)

Persondata
NAME	Noyes, Arthur Amos
ALTERNATIVE NAMES
SHORT DESCRIPTION	American Chemist
DATE OF BIRTH	September 13, 1866
PLACE OF BIRTH	Newburyport, Mass., U.S.
DATE OF DEATH	June 3, 1936
PLACE OF DEATH	California, U.S.

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Arthur Amos Noyes

Noyes-Whitney Equation

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