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Liebig Process
Justus ''Freiherr'' von Liebig (12 May 1803 – 18 April 1873) was a German scientist who made major contributions to the theory, practice, and pedagogy of chemistry, as well as to agricultural and biological chemistry; he is considered one of the principal founders of organic chemistry. As a professor at the University of Giessen, he devised the modern laboratory-oriented teaching method, and for such innovations, he is regarded as one of the most outstanding chemistry teachers of all time. He has been described as the "father of the fertilizer industry" for his emphasis on nitrogen and minerals as essential plant nutrients, and his popularization of the law of the minimum, which states that plant growth is limited by the scarcest nutrient resource, rather than the total amount of resources available. He also developed a manufacturing process for beef extracts, and with his consent a company, called Liebig Extract of Meat Company, was founded to exploit the concept; it later i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Darmstadt
Darmstadt () is a city in the States of Germany, state of Hesse in Germany, located in the southern part of the Frankfurt Rhine Main Area, Rhine-Main-Area (Frankfurt Metropolitan Region). Darmstadt has around 160,000 inhabitants, making it the fourth largest city in the state of Hesse after Frankfurt am Main, Wiesbaden, and Kassel. Darmstadt holds the official title "City of Science" () as it is a major centre of scientific institutions, universities, and high-technology companies. The European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) and the European Space Agency's European Space Operations Centre (ESA ESOC) are located in Darmstadt, as well as Gesellschaft für Schwerionenforschung, GSI Centre for Heavy Ion Research, where several chemical elements such as bohrium (1981), meitnerium (1982), hassium (1984), darmstadtium (1994), roentgenium (1994), and copernicium (1996) were discovered. The existence of the following elements was also confirmed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
August Wilhelm Von Hofmann
August Wilhelm von Hofmann (8 April 18185 May 1892) was a German chemist who made considerable contributions to organic chemistry. His research on aniline helped lay the basis of the aniline-dye industry, and his research on coal tar laid the groundwork for his student Charles Mansfield's practical methods for extracting benzene and toluene and converting them into nitro compounds and amines. Hofmann's discoveries include formaldehyde, hydrazobenzene, the isonitriles, and allyl alcohol. He prepared three ethylamines and tetraethylammonium compounds and established their structural relationship to ammonia. After studying under Justus von Liebig at the University of Giessen, Hofmann became the first director of the Royal College of Chemistry, now part of Imperial College London, in 1845. In 1865 he returned to Germany to accept a position at the University of Berlin as a teacher and researcher. After his return he co-founded the German Chemical Society (''Deutsche Chemis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agricultural Chemistry
Agricultural chemistry is the chemistry, especially organic chemistry and biochemistry, as they relate to agriculture. Agricultural chemistry embraces the structures and chemical reactions relevant in the production, protection, and use of Crop, crops and livestock. Its applied science and technology aspects are directed towards increasing yields and improving quality, which comes with multiple advantages and disadvantages. Agricultural and environmental chemistry This aspect of agricultural chemistry deals with the role of molecular chemistry in agriculture as well as the negative consequences. Plant biochemistry Plant biochemistry encompasses the chemical reactions that occur within plants. In principle, knowledge at a molecular level informs technologies for providing food. Particular focus is on the biochemical differences between plants and other organisms as well as the differences within the plant kingdom, such as dicotyledons vs monocotyledons, gymnosperms vs angiosp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max Joseph Von Pettenkofer
Max Joseph Pettenkofer, ennobled in 1883 as Max Joseph von Pettenkofer (3 December 1818 – 10 February 1901) was a Bavarian chemist and hygienist. He is known for his work in practical hygiene, as an apostle of good water, fresh air and proper sewage disposal. He was further known as an anti-contagionist, a school of thought, named later on, that did not believe in the then novel concept that bacteria were the main cause of disease. In particular he argued in favor of a variety of conditions collectively contributing to the incidence of disease including: personal state of health, the fermentation of environmental ground water, and also the germ in question. He was most well known for his establishment of hygiene as an experimental science and also was a strong proponent for the founding of hygiene institutes in Germany. His work served as an example which other institutes around the world emulated. Early life and education Pettenkofer was born in Lichtenheim, near Neuburg an d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Vogt
August Christoph Carl Vogt (; ; 5 July 1817 – 5 May 1895) was a German scientist, philosopher, popularizer of science, and politician who emigrated to Switzerland. Vogt published a number of notable works on zoology, geology and physiology. All his life he was engaged in politics, in the German Frankfurt Parliament of Revolutions of 1848, 1848–49 and later in Switzerland. Early life Vogt was born in Giessen, the son of , professor of clinics, and Louise Follenius. His maternal uncle was Charles Follen. From 1833 to 1836, he studied medicine at the University of Giessen, and continued his training in Bern, Switzerland, earning his PhD. in 1839. He then worked with Louis Agassiz in Neuchâtel. Life and Career In 1847 he became professor of zoology at the University of Giessen, and in 1852 professor of geology and afterwards also of zoology at the University of Geneva. His earlier publications were on zoology. He dealt with the Amphibia (1839), Reptiles (1840), with Mollusca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julius Eugen Schlossberger
Julius Eugen Schlossberger (31 May 1819, in Stuttgart – 9 July 1860, in Tübingen), also spelled Julius Eugen Schloßberger, was a German physician and biochemist. He was a student of Justus von Liebig and was one of the leading physiological chemists in his lifetime. Biography He obtained his doctorate in medicine and surgery (''Dr. med. et chir.'') at the age of 21, and worked at St. Catherine's Hospital in Stuttgart and as the private physician of a count, before he continued his studies in Vienna, Paris and Giessen. In Giessen, he came under the influence and patronage of Liebig, who introduced him to the field of physiological chemistry. From 1845, he worked at the chemical laboratory of William Gregory (himself a student of Liebig) at the University of Edinburgh, before he became professor at the University of Tübingen. He published several works analysing and summarising different physiological subfields, and on the chemical composition of body tissues such as musc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Augustus Voelcker
John Christopher Augustus Voelcker FRS (24 September 1822 – 5 December 1884) was a Royal Agricultural Society of England chemist. Voelcker was known for his methodical and precise analytical practices as applied to agricultural chemistry. He began a series of long-term experiments at Woburn on crop rotation and fertilization in 1876. This was continued after his death in 1884 by his son John Augustus Voelcker (1854-1937) who was also an agricultural chemist who headed a committee to investigate improvements to agriculture in India following famines there. Life Born in Frankfurt, Augustus was the fifth son of Frederick Adolphus Voelcker, a local merchant who died when he was eleven. Poor health led to delayed schooling and he was forced to seek employment at the age of sixteen. After working as a pharmacist's assistant in Frankfurt am Main until 1842 and in Schaffhausen until 1844, Voelcker entered University of Göttingen where he studied chemistry under professor Friedrich ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sir Benjamin Collins Brodie, 2nd Baronet
Sir Benjamin Collins Brodie, 2nd Baronet FRS (5 February 181724 November 1880) was an English chemist. Biography Brodie was the son of Sir Benjamin Collins Brodie, 1st Baronet, and his wife Anne (Née Sellon), and was educated at Harrow School and Balliol College, Oxford. He obtained a second-class honours degree in mathematics in 1838. Because he was an agnostic and would not assent to the Thirty-nine articles, he was refused a MA until 1860. He studied chemistry with Justus von Liebig in Giessen along with Alexander Williamson. At Giessen, he did an original analysis of beeswax for which he was given the Fellowship of the Royal Society in 1849 and awarded the Royal Medal in 1850. Brodie did important original work on peroxides in his private laboratory where he taught Nevil Story Maskelyne chemistry. He was secretary of the Chemical Society from 1850 to 1854 and its president in 1860. However, he opposed the atomic theory and proposed in 1866 his Calculus of Chemical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
August Kekulé
Friedrich August Kekulé, later Friedrich August Kekule von Stradonitz ( , ; 7 September 1829 – 13 July 1896), was a German organic chemist. From the 1850s until his death, Kekulé was one of the most prominent chemists in Europe, especially in the field of theoretical chemistry. He was the principal founder of the theory of chemical structure and in particular the Kekulé structure of benzene. Name Kekulé never used his first given name; he was known throughout his life as August Kekulé. He did however say it once in his work. After he was ennobled by the Kaiser in 1895, he adopted the name August Kekule von Stradonitz, without the French acute accent over the second "e". The French accent had apparently been added to the name by Kekulé's father during the Napoleonic occupation of Hesse by France, to ensure that French-speakers pronounced the third syllable. Early years The son of a civil servant, Kekulé was born in Darmstadt, the capital of the Grand Duchy of Hesse. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilhelm Henneberg
Wilhelm Henneberg (10 September 1825 – 22 November 1890) was a German chemist and student of Justus von Liebig. Life He attended the Collegium Carolinum in Brunswick and studied at the University of Giessen with Justus von Liebig and at the University of Jena where he received his Ph.D. in 1849. It was under the influence of Liebig that Henneberg decided to devote his career to agricultural chemistry.Henneberg, Johann Wilhelm Julius at Deutsche Biographie In 1852 he became secretary of the ''Königlich Hannoverschen Landwirtschaftsgesellschaft'' (Royal Hanoverian Agricultural Society) in , and in 1857 was named director of the newly established agricultural experiment station in [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adolph Strecker
Adolph Strecker (21 October 1822 – 7 November 1871) was a German chemist who is known primarily for his work with amino acids. Life and work Strecker was born in Darmstadt, the son of Friedrich Ludwig Strecker, an archivist working for the hessian Grand Duke, and Henriette Amalie Johannette Koch. Adolph Strecker attended school in Darmstadt until 1838 when he changed to the higher Gewerbeschule. After receiving his abitur in 1840, Strecker began studying science at the University of Giessen, where Justus Liebig was a professor. In August 1842, Strecker received his PhD and began teaching at a realschule in Darmstadt. He refused one offer to work for Liebig, but in 1846 he accepted another and became Liebig's private assistant at the University of Giessen. Strecker finished his habilitation in 1848 and became a lecturer at the university. Strecker investigated a wide variety of problems in both organic and inorganic chemistry during his time at Giessen. Examples include the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moritz Traube
Moritz Traube (12 February 1826 – 28 June 1894) was a German chemist and universal private scholar. Traube worked on chemical, biochemical, medical, physiological, pathophysiological problems. He was engaged in hygienics, physical chemistry and basic chemical research. Although he was never a staff member of a university and earned his living as a wine merchant, he was able to refute theories of his leading contemporaries, including Justus von Liebig, Louis Pasteur, Felix Hoppe-Seyler and Julius Sachs, and to develop significant theories of his own with solid experimental foundations. The chemistry of oxygen and its significance to the organism were the central objects of his research and provided the common thread uniting almost all of his scientific activity. Moritz Traube was a younger brother of the famous Berlin physician Ludwig Traube (physician), the co-founder of the German experimental pathology. A son, Wilhelm Traube, evolved a process of purine synthesis. Hermann ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
