Torbern Bergman

Torbern Bergman
Torbern Olaf Bergman (1735-1784)
Born	20 March 1735 Katharinberg, Sweden
Died	8 July 1784 Medevi, Sweden
Residence	Sweden
Nationality	Swedish
Fields	Chemist and mineralogist
Institutions	University of Uppsala
Alma mater	University of Uppsala
Doctoral advisor	Bengt Ferrner
Doctoral students	Johann Afzelius
Known for	Chemical affinity tables
Influences	Carl von Linné
Spouse	Margareta Catharina Trast

Torbern Olof Bergman (KVO) (20 March 1735 – 8 July 1784) was a Swedish chemist and mineralogist noted for his 1775 Dissertation on Elective Attractions, containing the largest chemical affinity tables ever published. Bergman was the first chemist to use the A, B, C, etc., system of notation for chemical species.

Early life and education

Torbern was born on 20 March 1735, the son of Barthold Bergman and Sara Hägg. He enrolled at the University of Uppsala at age 17. His father wished him to read either law or divinity, while he himself was anxious to study mathematics and natural science; in the effort to please both himself and his father, he overworked himself and harmed his health. During a period of enforced abstinence from study, he amused himself with field botany and entomology. He was able to send Linnaeus specimens of several new kinds of insects, and in 1756 he succeeded in proving that, contrary to the opinion of that naturalist, the so-called Coccus aquaticus was really the ovum of a kind of leech. He returned to the university in 1758, and received his Ph.D. in that year.

Career

Bergman lectured at the university on physics and mathematics. Upon the resignation of the celebrated Wallerius, Bergman was a candidate for the professorship of chemistry and mineralogy. His competitors charged him with ignorance of the subject, because he had never written on it. To refute them, he shut himself up for some time in a laboratory, and prepared a treatise on the manufacture of alum, which became a standard work. He was appointed a professor of chemistry, and remained at this position for the rest of his life.

Bergman greatly contributed to the advancement of quantitative analysis, and he developed a mineral classification scheme based on chemical characteristics and appearance. He is noted for his research on the chemistry of metals, especially bismuth and nickel.

In 1764, Bergman was elected a member of the Royal Swedish Academy of Sciences. In April, 1765 he was elected a Fellow of the Royal Society of London.

In 1771, four years after Joseph Priestley first created artificially carbonated water, Bergman invented a process to make carbonated water from chalk by the action of sulfuric acid. Finally he is noted for his sponsorship of Carl Wilhelm Scheele, whom some deem to be Torbern's "greatest discovery".

Personal life

In 1771, Bergman married Margareta Catharina Trast.

Legacy

In Bergman's honor, the uranium mineral Torbernite and the lunar crater Bergman both bear his name.

References

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•  This article incorporates text from a publication now in the public domain: 

Further reading

• Mostrom, Birgitta. (1957). Torbern Bergman: a bibliography of his works. Stockholm: Almqvist & Wiksell. Includes over 300 items, including translations printed up to 1956.
• Schufle, J.A. (1985). Torbern Bergman : a man before his time. Lawrence, Kan.: Coronado Press.
• Johannes Uray, Chemische Theorie und mineralogische Klassifikationssysteme von der chemischen Revolution bis zur Mitte des 19. Jahrhunderts. In: Berhard Hubmann, Elmar Schübl, Johannes Seidl (eds.), Die Anfänge geologischer Forschung in Österreich. Beiträge zur Tagung „10 Jahre Arbeitsgruppe Geschichte der Erdwissenschaften Österreichs“ von 24. bis 26. April 2009 in Graz. Graz 2010, S 107-125.

External links

• Torbern Bergman Biography - by James S. Aber
• Bergman, Torbern (1735–1784). Opuscula Physica et Chemica. 6 vols. Uppsala, 1780.
• Bergman's chemical genealogy
• Physisk Beskrifning öfver Jord-Klotet (2 volumes, 1773) - full digital facsimile from Linda Hall Library