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Georg Ludwig Carius
Georg Ludwig Carius (August 24, 1829 – April 24, 1875) was a German chemist born in Barbis, in the Kingdom of Hanover. He studied under Friedrich Wöhler and was assistant to Robert Bunsen for 6 years. He was Director of the Marburger Chemical Institute (Marburger Chemischen Instituts) of Philipps University of Marburg Philipps is an English language, English, Dutch language, Dutch, and German language, German surname meaning "lover of horses". Derivative, patronym, of the more common ancient Greek name "Philippos and Philippides." Notable people with this surnam ... from 1865. He is noted for the studies of oxidation for which he developed a method involving high temperature digestion in a sealed tube. Heavy wall sealed tubes, as used for digestion or thermolysis, are referred to as " Carius tubes". He also wrote a textbook on polybasic acids. See also * Organosilver chemistry References External linksGenealogy Database Entry [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carius Tube V
In Greek mythology, Carius or Karios () was the son of Zeus and Torrhebia. His mother's name is connected to Torrhebos, the name of a city in Lydia. According to Hellanicus, there was a mountain named Karios (Carius) near this city, with the sanctuary of Carius situated on it. Mythology Nicolaus Damascenus writes that as Carius was wandering by the Torrhebis lake when he heard nymphs singing. These nymphs were also called the Muses by the Lydians. Carius learned music from them, and taught it to the Lydians. This kind of music was known as "Torrhebian songs". ''Carius'' ("of Caria") was also a surname of Zeus himself, under which he was venerated in Mylasa.Stephanus of Byzantium, ''Ethnica'' s.v. Karia' See also *List of Greek deities Notes References * Herodotus, ''The Histories'' with an English translation by A. D. Godley. Cambridge. Harvard University Press. 1920. Online version at the Topos Text Project. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemist
A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a graduated scientist trained in the study of chemistry, or an officially enrolled student in the field. Chemists study the composition of matter and its properties. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms. Chemists carefully measure substance proportions, chemical reaction rates, and other chemical properties. In Commonwealth English, pharmacists are often called chemists. Chemists use their knowledge to learn the composition and properties of unfamiliar substances, as well as to reproduce and synthesize large quantities of useful naturally occurring substances and create new artificial substances and useful processes. Chemists may specialize in any number of Chemistry#Subdisciplines, subdisciplines of chemistry. Materials science, Materials scientists and metallurgists sha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bad Lauterberg
Bad Lauterberg is a town in the district of Göttingen, in Lower Saxony, Germany. It is situated in the southern Harz, approx. 15 km southwest of Braunlage, and 20 km southeast of Osterode am Harz. Bad Lauterberg is known ''inter alia'' for the liqueurs, '' Schierker Feuerstein'' and ''Harzer Grubenlicht'', which are both manufactured and bottled here. Bad Lauterberg was the birthplace (1879) of the Polar explorer Alfred Ritscher. Politics Town council Town Council after the local elections on September 11, 2016: *CDU: 6 seats *Wählergruppe: 5 seats *SPD: 5 seats *BI: 2 seats *Bündnis 90/Die Grünen: 1 seats *NPD: 1 seat Sights About a mile east of the town in the mountains is the viewing point of ''Hohe Tür'' which is by a mountain lake and on the main Weser-Elbe watershed. It is checkpoint 43 in the Harzer Wandernadel hiking network. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kingdom Of Hanover
The Kingdom of Hanover () was established in October 1814 by the Congress of Vienna, with the restoration of George III to his Hanoverian territories after the Napoleonic Wars, Napoleonic era. It succeeded the former Electorate of Hanover, and joined 38 other sovereign states in the German Confederation in June 1815. The kingdom was ruled by the House of Hanover, a cadet branch of the House of Welf, in Personal union of Great Britain and Hanover, personal union with Great Britain between 1714 and 1837. Since its monarch resided in London, a viceroy, usually a younger member of the British royal family, handled the administration of the Kingdom of Hanover. The personal union with the United Kingdom ended in 1837 upon the accession of Queen Victoria because semi-Salic law prevented females from inheriting the Hanoverian throne while a dynastic male was still alive. Her uncle Ernest Augustus, King of Hanover, Ernest Augustus thus became the ruler of Hanover. His only son succeeded h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich Wöhler
Friedrich Wöhler Royal Society of London, FRS(For) HonFRSE (; 31 July 180023 September 1882) was a German chemist known for his work in both organic chemistry, organic and inorganic chemistry, being the first to isolate the chemical elements beryllium and yttrium in pure metallic form. He was the first to prepare several inorganic compounds, including silane and silicon nitride. Wöhler is also known for seminal contributions in organic chemistry, in particular, the Wöhler synthesis of urea. His synthesis of the organic compound urea in the laboratory from inorganic substances contradicted the belief that organic compounds could only be produced by living organisms due to a "life force". However, the exact extent of Wöhler's role in diminishing the belief in vitalism is considered by some to be questionable. Biography Friedrich Wöhler was born in Eschersheim, Germany, and was the son of a veterinarian. As a boy, he showed interest in mineral collecting, drawing, and science. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Bunsen
Robert Wilhelm Eberhard Bunsen (; 30 March 1811 – 16 August 1899) was a German chemist. He investigated emission spectra of heated elements, and discovered caesium (in 1860) and rubidium (in 1861) with the physicist Gustav Kirchhoff. The Bunsen–Kirchhoff Award for spectroscopy is named after Bunsen and Kirchhoff. Bunsen also developed several gas-analytical methods, was a pioneer in photochemistry, and did early work in the field of organic arsenic chemistry. With his laboratory assistant Peter Desaga, he developed the Bunsen burner, an improvement on the laboratory burners then in use. Early life and education Bunsen was born in Göttingen, Germany, in 1811, in what is now the state of Lower Saxony in Germany. Bunsen was the youngest of four sons of the University of Göttingen's chief librarian and professor of modern philology, Christian Bunsen (1770–1837). After attending school in Holzminden, Bunsen matriculated at Göttingen in 1828 and studied chemistry wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philipps University Of Marburg
Philipps is an English language, English, Dutch language, Dutch, and German language, German surname meaning "lover of horses". Derivative, patronym, of the more common ancient Greek name "Philippos and Philippides." Notable people with this surname are: "Philipps" has also been a shortened version of Philippson, a German language, German surname especially prevalent amongst German Jews and Dutch Jews. * Busy Philipps (born 1979), American film actress * Colwyn Philipps, 3rd Viscount St Davids (1939–2009), British peer * Kinga Philipps (born 1976), American actress * Rhodri Philipps (born 1966), eldest son of the current Viscount St Davids * Richard Philipps (1661–1750), British Governor of Nova Scotia * Sir John Philipps, 6th Baronet (circa 1701–1764), Welsh Jacobite politician * Sir Owen Cosby Philipps (1863–1937), Knight of Justice of the Order of St John * Wogan Philipps, 2nd Baron Milford (1902–1993), only member of the Communist Party of Great Britain ever to sit in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermal Decomposition
Thermal decomposition, or thermolysis, is a chemical decomposition of a substance caused by heat. The decomposition temperature of a substance is the temperature at which the substance chemically decomposes. The reaction is usually endothermic as heat is required to break chemical bonds in the compound undergoing decomposition. If decomposition is sufficiently exothermic, a positive feedback loop is created producing thermal runaway and possibly an explosion or other chemical reaction. Decomposition temperature definition A simple substance (like water) may exist in equilibrium with its thermal decomposition products, effectively halting the decomposition. The equilibrium fraction of decomposed molecules increases with the temperature. Since thermal decomposition is a kinetic process, the observed temperature of its beginning in most instances will be a function of the experimental conditions and sensitivity of the experimental setup. For a rigorous depiction of the process, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carius Halogen Method
The Carius halogen method in analytical chemistry is a method for the quantitative determination of halogens in chemical substances.Julius B. Cohen ''Practical Organic Chemistry'' 1910''Link to online text/ref> A known mass of an organic compound is heated with fuming nitric acid in the presence of silver nitrate contained in a hard glass tube known as carius tube, in a furnace. Carbon and hydrogen present in the compound are oxidised to carbon dioxide and water. The halogen present forms the corresponding silver halide (AgX). It is filtered, washed, dried and weighed. This chemical test works equally well for the determination of sulfur but without addition of silver nitrate. The sulfuric acid intermediate formed after reaction of sulfur with fuming nitric acid forms insoluble barium sulfate on addition of barium chloride Barium chloride is an inorganic compound with the formula . It is one of the most common water-soluble salts of barium. Like most other water-soluble bar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organosilver Chemistry
Organosilver chemistry is the study of organometallic compounds containing a carbon to silver chemical bond. The theme is less developed than organocopper chemistry. The first attempts in organosilver were recorded by Buckton in 1859 and by J. A. Wanklyn & L. Carius in 1861. The synthesis of methyl silver was described by Semerano and Riccoboni Poor thermal stability is reflected in decomposition temperatures of AgMe (-50 °C) versus CuMe (-15 °C) and PhAg (74 °C) vs PhCu (100 °C).Greenwood and Earnshaw, pp. 1199–200 Alkyl, alkenyl, aryl derivatives Phenylsilver can be obtained by reaction of silver nitrate with a trialkylphenyllead or diphenylzinc: :Ph2Zn + AgNO3 → PhAg + "PhZnNO3" Like all silver complexes, organosilver compounds have coordination numbers ≥2. For example, mesitylsilver is a tetramer with 2-coordinate Ag(I) centers. It is produced by reaction of silver chloride and the Grignard reagent: :AgCl + (CH3)3C6H2MgBr → 1/4 CH3)3C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1829 Births
Events January–March * January 19 – Ernst August Friedrich Klingemann, August Klingemann's adaptation of Johann Wolfgang von Goethe's ''Goethe's Faust, Faust'' premieres in Braunschweig. * February 27 – Battle of Tarqui: Troops of Gran Colombia and Peru battle to a draw. * March 11 – German composer Felix Mendelssohn conducts the first performance of Johann Sebastian Bach's ''St Matthew Passion'' since the latter's death in 1750, in Berlin; the success of this performance sparks a revival of interest in Bach. * March 21 – The bloodless Wellington–Winchilsea duel takes place at Battersea near London * March 22 – Greece receives autonomy from the Ottoman Empire in the London Protocol (1829), London Protocol, signed by Russian Empire, Russia, France and Britain, effectively ending the Greek War of Independence. Greece continues to seek full independence through diplomatic negotiations with the three Great Powers. * March 31 – Pope Pius VIII succeeds Pope Leo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1875 Deaths
Events January * January 1 – The Midland Railway of England abolishes the Second Class passenger category, leaving First Class and Third Class. Other British railway companies follow Midland's lead during the rest of the year (Third Class is renamed Second Class in 1956). * January 5 – The Palais Garnier, one of the most famous opera houses in the world, is inaugurated as the home of the Paris Opera. * January 12 – Guangxu becomes the 11th Qing dynasty Emperor of China at the age of 3. He succeeds his cousin, the Tongzhi Emperor, who had no sons of his own. * January 14 – The newly proclaimed King Alfonso XII of Spain (Queen Isabella II's son) arrives in Spain to restore the monarchy during the Third Carlist War. * January 24 – Camille Saint-Saëns' orchestral ''Danse macabre'' receives its première. February * February 3 – Third Carlist War: Battle of Lácar – Carlist commander Torcuato Mendíri secures a brilliant victory, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
