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Early in he accepted a professorship at the University of Breslau , where he taught for three semesters.

In late Bunsen became the successor of Leopold Gmelin at the University of Heidelberg. There he used electrolysis to produce pure metals , such as chromium , magnesium , aluminium , manganese , sodium , barium , calcium and lithium.

A long collaboration with Henry Enfield Roscoe began in , in which they studied the photochemical formation of hydrogen chloride HCl from hydrogen and chlorine.

From this work, the reciprocity law of Bunsen and Roscoe originated. He discontinued his work with Roscoe in and joined Gustav Kirchhoff to study emission spectra of heated elements, a research area called spectrum analysis.

For this work, Bunsen and his laboratory assistant, Peter Desaga , had perfected a special gas burner by , which was influenced by earlier models.

The newer design of Bunsen and Desaga, which provided a very hot and clean flame, is now called simply the " Bunsen burner ", a common laboratory equipment.

There had been earlier studies of the characteristic colors of heated elements, but nothing systematic.

In the summer of , Kirchhoff suggested to Bunsen that he should try to form prismatic spectra of these colors. By October of that year the two scientists had invented an appropriate instrument, a prototype spectroscope.

Using it, they were able to identify the characteristic spectra of sodium, lithium, and potassium.

After numerous laborious purifications, Bunsen proved that highly pure samples gave unique spectra. In the course of this work, Bunsen detected previously unknown new blue spectral emission lines in samples of mineral water from Dürkheim.

He guessed that these lines indicated the existence of an undiscovered chemical element. He named the element "caesium", after the Latin word for deep blue.

The following year he discovered rubidium, by a similar process. In , Bunsen was elected a foreign member of the Royal Swedish Academy of Sciences.

In , Robert Bunsen together with Gustav Robert Kirchhoff were the first recipients of the prestigious Davy Medal "for their researches and discoveries in spectrum analysis".

Bunsen was one of the most universally admired scientists of his generation. He was a master teacher, devoted to his students, and they were equally devoted to him.

At a time of vigorous and often caustic scientific debates, Bunsen always conducted himself as a perfect gentleman, maintaining his distance from theoretical disputes.

He much preferred to work quietly in his laboratory, continuing to enrich his science with useful discoveries. As a matter of principle he never took out a patent.

He never married. Despite his lack of pretension, Bunsen was a vivid "chemical character", had a well-developed sense of humor, and is the subject of many amusing anecdotes.

When Bunsen retired at the age of 78, he shifted his work solely to geology and mineralogy , interests which he had pursued throughout his career.

He died in Heidelberg on 16 August , at the age of From Wikipedia, the free encyclopedia. Robert Bunsen. Göttingen , Westphalia , Rhine Confederation.

Heidelberg , Baden , German Empire. Discovery of cacodyl radical Discoveries of caesium and rubidium Discovery of use of the Bunsen burner Carbon-zinc electrochemical cell Methods of gas analysis Development of spectrochemical analysis.

Copley medal Davy Medal Albert Medal Chemistry career Geology and mineralogy retirement. Polytechnic School of Kassel University of Marburg University of Heidelberg University of Breslau.

Adolf von Baeyer Hans Goldschmidt Fritz Haber Philipp Lenard Georg Ludwig Carius Hermann Kolbe Adolf Lieben Carl Friedrich Wilhelm Ludwig Viktor Meyer Lothar Meyer Friedrich Konrad Beilstein Henry Enfield Roscoe John Tyndall Edward Frankland Thomas Edward Thorpe Francis Robert Japp.

Dmitri Mendeleev Julia Lermontova. His parish register , as well as two curricula vitae handwritten by Bunsen himself, support the claim that 30 March is Bunsen's true birth date; [1] [2] [3] [4] however, many later sources cite 31 March as the date.

Lockemann nevertheless regarded the 30th as the correct date. Deutsche Bunsen-Gesellschaft für Physikalische Chemie.

Lebensbild eines deutschen Naturforschers , Wissenschaftliche Verlagsgesellschaft Stuttgart, , p. Journal of the American Chemical Society.

American Chemical Society. Russell, Phys. Retrieved 31 March from Encyclopedia. Bibcode : Natur..

School Science and Mathematics. Easton, PA: Journal of Chemical Education. Retrieved 16 September Moviepilot Trailer.

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