Ruperto Carola 500-08 Friedrich Wilhelm Hermann Delffs

Friedrich Wilhelm Hermann Delffs (21 April 1812 in

Kiel Kiel () is the capital and most populous city in the northern German state of Schleswig-Holstein, with a population of 246,243 (2021). Kiel lies approximately north of Hamburg. Due to its geographic location in the southeast of the Jutland ...

– 18 March 1894 in

Heidelberg Heidelberg (; Palatine German language, Palatine German: ''Heidlberg'') is a city in the States of Germany, German state of Baden-Württemberg, situated on the river Neckar in south-west Germany. As of the 2016 census, its population was 159,914 ...

) was a German chemist. He studied natural sciences at the

University of Kiel Kiel University, officially the Christian-Albrecht University of Kiel, (german: Christian-Albrechts-Universität zu Kiel, abbreviated CAU, known informally as Christiana Albertina) is a university in the city of Kiel, Germany. It was founded in ...

, receiving his doctorate in 1834. In 1840 he obtained his habilitation at the

University of Heidelberg } Heidelberg University, officially the Ruprecht Karl University of Heidelberg, (german: Ruprecht-Karls-Universität Heidelberg; la, Universitas Ruperto Carola Heidelbergensis) is a public research university in Heidelberg, Baden-Württemberg, ...

, where in 1843 he became an associate professor. From 1853 he was a full professor of chemistry at Heidelberg, being given the status of

professor emeritus ''Emeritus'' (; female: ''emerita'') is an adjective used to designate a retired chair, professor, pastor, bishop, pope, director, president, prime minister, rabbi, emperor, or other person who has been "permitted to retain as an honorary title ...

in 1889. At Heidelberg he gave classes in

pharmaceutical A medication (also called medicament, medicine, pharmaceutical drug, medicinal drug or simply drug) is a drug used to diagnose, cure, treat, or prevent disease. Drug therapy (pharmacotherapy) is an important part of the medical field an ...

, organic and

physiological chemistry Biochemistry or biological chemistry is the study of chemical processes within and relating to living organisms. A sub-discipline of both chemistry and biology, biochemistry may be divided into three fields: structural biology, enzymology a ...

.Pharmaceutical Review, Volume 12
/ref>Heidelberger Gelehrtenlexikon 1803–1932
by Dagmar Drüll He main research dealt with investigations of

uric acid Uric acid is a heterocyclic compound of carbon, nitrogen, oxygen, and hydrogen with the formula C5H4N4O3. It forms ions and salts known as urates and acid urates, such as ammonium acid urate. Uric acid is a product of the metabolic breakdown ...

fumaric acid Fumaric acid is an organic compound with the formula HO2CCH=CHCO2H. A white solid, fumaric acid occurs widely in nature. It has a fruit-like taste and has been used as a food additive. Its E number is E297. The salts and esters are known as fu ...

, oenanthic ether, sorbin, laurin,

molybdate In chemistry a molybdate is a compound containing an oxoanion with molybdenum in its highest oxidation state of 6. Molybdenum can form a very large range of such oxoanions which can be discrete structures or polymeric extended structures, althou ...

of ammonia and

alloxan Alloxan, sometimes referred to as ''alloxan hydrate'', is the name of the organic compound with the formula OC(N(H)CO)2C(OH)2. It is classified as a derivative of pyrimidine. The anhydrous derivative OC(N(H)CO)2CO is also known, as well as a di ...

. In 1843, with

mineralogist Mineralogy is a subject of geology specializing in the scientific study of the chemistry, crystal structure, and physical (including optical) properties of minerals and mineralized artifacts. Specific studies within mineralogy include the proce ...

Johann Reinhard Blum, he proposed the name "leonhardite" for partially dehydrated forms of

laumontite Laumontite is a mineral, one of the zeolite group. Its molecular formula is , a hydrated calcium-aluminium silicate. Potassium or sodium may substitute for the calcium but only in very small amounts. It is monoclinic, space group C2/m. It forms ...

Published works

* ''Die anorganische Chemie in ihren Grundzügen: dargestellt'', 1839 – Inorganic chemistry shown in outline. * ''Die organische Chemie in ihren Grundzûgen dargestellt''. Kiel, 1840 – Organic chemistry shown in outline. * ''Stöchiometrischer Commentar zur Pharmacopoea Badensis'', Heidelberg 1842 –

Stoichiometric Stoichiometry refers to the relationship between the quantities of reactants and products before, during, and following chemical reactions. Stoichiometry is founded on the law of conservation of mass where the total mass of the reactants equ ...

commentary on the Pharmacopoea Badensis. * ''Analyse des Leonhardits'', in: Poggendorff's Annalen der Physik und Chemie 59, 339-342 – Analysis of leonhardite. * ''Siedepunkte, specifische Gewichte und Brechungsexponenten mehrerer organischer Flüssigkeiten'', 1853. * ''Die reine Chemie in ihren Grundzügen''; Erlangen, (3rd edition; 2 volumes, 1854/55) – The pure chemistry: presented in outline.Die organische Chemie in ihren Grundzügen dargestellt
OCLC WorldCat

References

External links

* {{DEFAULTSORT:Delffs, Friedrich Wilhelm Hermann 1812 births 1894 deaths Scientists from Kiel University of Kiel alumni Academic staff of Heidelberg University 19th-century German chemists