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Peter Griess
Johann Peter Griess (6 September 1829 – 30 August 1888) was an industrial chemist and an early pioneer of organic chemistry. Griess was influential in the formation of modern dyes, first formulating the diazotization reaction of arylamines. Life After he finished at an agricultural private school, he joined the Hessian cavalry, but left the military shortly after. He started his studies at the University of Jena in 1850, but changed to the University of Marburg in 1851. During his student life he was several times sentenced to the Karzer (campus jail) and was also banned from the city for one year, during which time he listened to lectures of Justus Liebig at the Ludwig Maximilian University of Munich. After most of the family possession had been spent, he had to start working at the chemical factory of Oehler in Offenbach am Main in 1856. This was only possible after the recommendation of Hermann Kolbe, who was head of the chemistry department in Marburg. The devastating fire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirchhosbach
Waldkappel is a small town in the Werra-Meißner-Kreis district in northern Hesse, Germany. Geography Location Waldkappel is located between Hessisch Lichtenau in the west and Eschwege in the east in the North Hesse Upland between the Meißner-Kaufunger Wald Nature Park neighbouring it to the north and the Stölzinger Gebirge (range) in the south, in the Wehre valley. Neighbouring communities Waldkappel borders in the north on the community of Meißner, in the east on the community of Wehretal, in the south on the town of Sontra (all three in the Werra-Meißner-Kreis), in the southwest on the community of Cornberg and the town of Rotenburg an der Fulda (both in Hersfeld-Rotenburg) and in the west on the towns of Spangenberg (in the Schwalm-Eder-Kreis) and Hessisch Lichtenau (in the Werra-Meißner-Kreis). Constituent communities Waldkappel consists of 15 districts (Ger.: '' Stadtteile''), namely its administrative centre Waldkappel as well as Bischhausen, Burghofen, Eltmannsee, F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Jena
The University of Jena, officially the Friedrich Schiller University Jena (german: Friedrich-Schiller-Universität Jena, abbreviated FSU, shortened form ''Uni Jena''), is a public research university located in Jena, Thuringia, Germany. The university was established in 1558 and is counted among the ten oldest universities in Germany. It is affiliated with six Nobel Prize winners, most recently in 2000 when Jena graduate Herbert Kroemer won the Nobel Prize for physics. In the 2023 Times Higher Education World University Rankings, the university was awarded 189th place in the world. It was renamed after the poet Friedrich Schiller who was teaching as professor of philosophy when Jena attracted some of the most influential minds at the turn of the 19th century. With Karl Leonhard Reinhold, Johann Gottlieb Fichte, G. W. F. Hegel, F. W. J. Schelling and Friedrich Schlegel on its teaching staff, the university was at the centre of the emergence of German idealism and early Romanti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Emil Fischer
Hermann Emil Louis Fischer (; 9 October 1852 – 15 July 1919) was a German chemist and 1902 recipient of the Nobel Prize in Chemistry. He discovered the Fischer esterification. He also developed the Fischer projection, a symbolic way of drawing asymmetric carbon atoms. He also hypothesized lock and key mechanism of enzyme action. He never used his first given name, and was known throughout his life simply as Emil Fischer. Early years and career Fischer was born in Euskirchen, near Cologne, the son of Laurenz Fischer, a businessman, and his wife Julie Poensgen. After graduating he wished to study natural sciences, but his father compelled him to work in the family business until determining that his son was unsuitable. Fischer then attended the University of Bonn in 1871, but switched to the University of Strasbourg in 1872. He earned his doctorate in 1874 under Adolf von Baeyer with his study of phthaleins, and was appointed to a position at the university. After eight ye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berichte Der Deutschen Chemischen Gesellschaft
''Chemische Berichte'' (usually abbreviated as ''Ber.'' or ''Chem. Ber.'') was a German-language scientific journal of all disciplines of chemistry founded in 1868. It was one of the oldest scientific journals in chemistry, until it merged with ''Recueil des Travaux Chimiques des Pays-Bas'' to form ''Chemische Berichte/Recueil'' in 1997. ''Chemische Berichte/Recueil'' was then merged with other European journals in 1998 to form ''European Journal of Inorganic Chemistry''. History Founded in 1868 as ''Berichte der Deutschen Chemischen Gesellschaft'' (, CODEN BDCGAS), it operated under this title until 1928 (Vol. 61). The journal was then split into: * ''Berichte der Deutschen Chemischen Gesellschaft, A: Vereins-Nachrichten'' (, CODEN BDCAAS), and * ''Berichte der Deutschen Chemischen Gesellschaft, B: Abhandlungen'' (, CODEN BDCBAD). Vol. 78 and 79 (1945–1946) were omitted and not published due to World War II. The journal was renamed ''Chemische Berichte'' (, CODEN CHBEAM) in 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrite
The nitrite polyatomic ion, ion has the chemical formula . Nitrite (mostly sodium nitrite) is widely used throughout chemical and pharmaceutical industries. The nitrite anion is a pervasive intermediate in the nitrogen cycle in nature. The name nitrite also refers to organic compounds having the –ONO group, which are esters of nitrous acid. Production Sodium nitrite is made industrially by passing a mixture of nitrogen oxides into aqueous sodium hydroxide or sodium carbonate solution: : The product is purified by recrystallization. Alkali metal nitrites are thermally stable up to and beyond their melting point (441 °C for KNO2). Ammonium nitrite can be made from dinitrogen trioxide, N2O3, which is formally the anhydride of nitrous acid: :2 NH3 + H2O + N2O3 → 2 NH4NO2 Structure The nitrite ion has a symmetrical structure (C2v molecular point group, symmetry), with both N–O bonds having equal length and a bond angle of about 115°. In valence bond theory, it is des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Griess Test
The Griess test is an analytical chemistry test which detects the presence of nitrite ion in solution. One of its most important uses is the determination of nitrite in drinking water. The Griess diazotization reaction, on which the Griess reagent relies, was first described in 1858 by Peter Griess.Peter Griess (1858"Vorläufige Notiz über die Einwirkung von salpetriger Säure auf Amidinitro- und Aminitrophenylsäure,"(Preliminary notice of the reaction of nitrous acid with picramic acid and aminonitrophenol), ''Annalen der Chemie und Pharmacie'', 106: 123–125. The test has also been widely used for the detection of nitrates (N-oxidation state = 5+), which are a common component of explosives, as they can be reduced to nitrites (N-oxidation state = 3+) and detected with the Griess test. Method Nitrite is detected and analyzed by the formation of a red pink colour upon treatment of a nitrite-containing sample with the Griess reagent, which consists of two components in an acidic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burton Upon Trent
Burton upon Trent, also known as Burton-on-Trent or simply Burton, is a market town in the borough of East Staffordshire in the county of Staffordshire, England, close to the border with Derbyshire. In United Kingdom Census 2011, 2011, it had a population of 72,299. The demonym for residents of the town is ''Burtonian''. Burton is located south-west of Derby, north-west of Leicester, west-south-west of Nottingham and south of the southern entrance to the Peak District National Park. Burton is Brewers of Burton, known for its brewing. The town grew up around Burton Abbey. Burton Bridge was also the site of two battles, in Battle of Burton Bridge (1322), 1322, when Edward II of England, Edward II defeated the rebel Thomas, Earl of Lancaster, Earl of Lancaster and in Battle of Burton Bridge (1643), 1643 when royalists captured the town during the First English Civil War. William Paget, 1st Baron Paget, William Lord Paget and his descendants were responsible for extending the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brewery
A brewery or brewing company is a business that makes and sells beer. The place at which beer is commercially made is either called a brewery or a beerhouse, where distinct sets of brewing equipment are called plant. The commercial brewing of beer has taken place since at least 2500 BC; in ancient Mesopotamia, brewers derived social sanction and divine protection from the goddess Ninkasi. Brewing was initially a cottage industry, with production taking place at home; by the ninth century, monasteries and farms would produce beer on a larger scale, selling the excess; and by the eleventh and twelfth centuries larger, dedicated breweries with eight to ten workers were being built. The diversity of size in breweries is matched by the diversity of processes, degrees of automation, and kinds of beer produced in breweries. A brewery is typically divided into distinct sections, with each section reserved for one part of the brewing process. History Beer may have been known in Neol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Allsopp & Sons
Samuel Allsopp & Sons was one of the largest breweries operating in Burton upon Trent, England. History Origins Allsopp's origins go back to the 1740s, when Benjamin Wilson, an innkeeper-brewer of Burton, brewed beer for his own premises and sold some to other innkeepers. Over the next 60 years, Wilson and his son and successor, also called Benjamin, cautiously built up the business and became the town's leading brewer. In about 1800, Benjamin Junior took his nephew Samuel Allsopp into the business and then in 1807, following a downturn in trade because of the Napoleonic blockade, he sold his brewery to Allsopp for £7,000.'Burton-upon-Trent: Economic history', A History of the County of Stafford Volume 9: Burton-upon-Trent (2003), pp. 53–84. Date accessed: 2 May 2012 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BASF
BASF Societas Europaea, SE () is a German multinational corporation, multinational chemical company and the List of largest chemical producers, largest chemical producer in the world. Its headquarters is located in Ludwigshafen, Germany. The BASF Group comprises subsidiary, subsidiaries and joint ventures in more than 80 countries and operates six integrated production sites and 390 other production sites in Europe, Asia, Australia, the Americas and Africa. BASF has customers in over 190 countries and supplies products to a wide variety of industries. Despite its size and global presence, BASF has received relatively little public attention since it abandoned the manufacture and sale of BASF-branded consumer electronics products in the 1990s. At the end of 2019, the company employed 117,628 people, with over 54,000 in Germany. , BASF posted sales of €59.3 billion and income from operations before special items of about €4.5 billion. Between 1990 and 2005, the co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrogen
Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N2, a colorless and odorless diatomic gas. N2 forms about 78% of Earth's atmosphere, making it the most abundant uncombined element. Nitrogen occurs in all organisms, primarily in amino acids (and thus proteins), in the nucleic acids ( DNA and RNA) and in the energy transfer molecule adenosine triphosphate. The human body contains about 3% nitrogen by mass, the fourth most abundant element in the body after oxygen, carbon, and hydrogen. The nitrogen cycle describes the movement of the element from the air, into the biosphere and organic compounds, then back into the atmosphere. Many indus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Offenbach Am Main
Offenbach am Main () is a List of cities and towns in Germany, city in Hesse, Germany, on the left bank of the river Main (river), Main. It borders Frankfurt and is part of the Frankfurt urban area and the larger Frankfurt Rhein-Main Regional Authority, Frankfurt Rhein-Main urban area. It has a population of 138,335 (December 2018). In the 20th century, the city's economy was built on machine-building, leather-making, typography and design, and the automobile and pharmaceutical industries. Geography Subdivision The inner city area of Offenbach is quite large and consists of the historic center of the city and its expansions of the 1800s. Three formerly independent suburbs were incorporated in the first half of the 20th century: Offenbach-Bürgel, Bürgel being the first in 1908, then Offenbach-Bieber, Bieber and Offenbach-Rumpenheim, Rumpenheim in 1938 and 1942. South of the inner city area are the suburbs Offenbach-Lauterborn, Lauterborn, Offenbach-Rosenhöhe, Rosenhöhe and Te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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