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Herbert Freundlich
Herbert Freundlich
Born	(1880-01-28)January 28, 1880 Charlottenburg
Died	March 30, 1941(1941-03-30) (aged 61) Minneapolis
Known for	Freundlich equation Ostwald–Freundlich equation
Awards	FRS (1939) Liversidge Award (1929)
Scientific career
Fields	Chemistry
Institutions	Kaiser Wilhelm Institute for Physical Chemistry and Electrochemistry University of Minnesota
Doctoral students	Morton Masius
Other notable students	Robert Havemann

Herbert Max Finlay Freundlich ForMemRS (28 January 1880 in Charlottenburg – 30 March 1941 in Minneapolis) was a German chemist.

His father was of German Jewish descent, and his mother (née Finlay) was from Scotland. His younger brother was Erwin Finlay Freundlich (1885–1964).

He was a department head at the Kaiser Wilhelm Institute for Physical Chemistry and Electrochemistry (now the Fritz Haber Institute) from 1919 until 1933, when the racial policies of the Nazi party demanded the dismissal of non-Aryans from senior posts. In 1934 he became a foreign member of the Royal Netherlands Academy of Arts and Sciences.

Emigrating to England, Freundlich accepted a guest professorship at University College London. Five years later, he accepted a professorship at the University of Minnesota. He died in Minneapolis two years later.

Freundlich's main works dealt with the coagulation and stability of colloidal solutions.

His most prominent student was Robert Havemann who became a well known colloid chemist of the German Democratic Republic.

His work is of continuing importance, with his 1907 paper "Über die Adsorption in Lösungen" (On adsorption in solutions) becoming highly cited at the beginning of the 21st century. This early paper was based on his habilitation thesis written in Leipzig under the guidance of Wilhelm Ostwald, and was heavily based on the work of Sten Lagergren.

See also

• Freundlich equation
• Ostwald–Freundlich equation
• Thixotropy

References

1. Donnan, F. G. (1942). "Herbert Freundlich. 1880-1941". Obituary Notices of Fellows of the Royal Society. 4 (11): 27–50. doi:10.1098/rsbm.1942.0004. S2CID 192055889.
2. Reitstötter, J. (1954). "Herbert Freundlich". Kolloid-Zeitschrift. 139 (1–2): 1–3. doi:10.1007/BF01502318. S2CID 197934411.
3. Gortner, R. A.; Sollner, K. (1941). "Herbert Freundlich 1880-1941". Science. 93 (2418): 414–416. Bibcode:1941Sci....93..414A. doi:10.1126/science.93.2418.414. PMID 17842472.
4. "H. Freundlich (1880 - 1941)". Royal Netherlands Academy of Arts and Sciences. Retrieved 17 July 2015.
5. Freundlich, Herbert (1907). "Über die Adsorption in Lösungen". Zeitschrift für Physikalische Chemie. 57U(1): 385–470. doi:10.1515/zpch-1907-5723. S2CID 101074630.
6. Q. Ke; et al. (2015). "Defining and identifying Sleeping Beauties in science". Proc. Natl. Acad. Sci. USA. 112 (24): 7426–7431. arXiv:1505.06454. Bibcode:2015PNAS..112.7426K. doi:10.1073/pnas.1424329112. PMC 4475978. PMID 26015563.

External links

• Works by or about Herbert Freundlich at the Internet Archive
• Herbert Freundlich - Did you know that the man of science Herbert Freudlich was also a composer?
• Ausstellungstafel der TU Berlin zu Prof. Freundlich
• Otto Hahns Rolle als Interimsdirektor des KWI für Physikalische Chemie und Elektrochemie 1933. Ein Vorabdruck aus dem Forschungsprogramm „Geschichte der Kaiser-Wilhelm-Gesellschaft im Nationalsozialismus"

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