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Eugen De Haën
Carl Johann Eugen de Haën (December 26, 1835 – November 16, 1911), often known as Eugen de Haën or Eugen de Haen, was a German chemist and entrepreneur. He was founder of the chemistry factory ''E. de Haën & Co''. Education and career De Haën studied in Heidelberg University under the supervision of Gustav Kirchhoff in physics, Robert Bunsen in chemistry and Gustav Leonhardt in mineralogy, receiving a PhD in 1856. Afterwards, he worked in several chemical factories. At the ''Silesia Verein Chemischer Fabriken'' in Saarau (Lower Silesia), Eugen de Haën became involved in 1860 in the chemical laboratory of Julius Knoevenagel (1832 – 1914) in Linden near Hanover, with whom he initially founded the small ''Chemische Fabrik Dr. Eugen de Haen & Cie'' in 1861. at Falkenstrasse 9. In 1861, he founded the E. de Haën company in Linden-Limmer, Linden and later in Vahrenwald-List, List, two small villages close to Hanover. The railway and the possibility to have access to the Mit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duisburg
Duisburg (; , ) is a city in the Ruhr metropolitan area of the western States of Germany, German state of North Rhine-Westphalia. Lying on the confluence of the Rhine (Lower Rhine) and the Ruhr (river), Ruhr rivers in the center of the Rhine-Ruhr metropolitan region, Rhine-Ruhr Region, Duisburg is the 5th largest city in North Rhine-Westphalia and the List of cities in Germany by population, 15th-largest city in Germany. In the Middle Ages, it was a city-state and a member of the Hanseatic League, and later became a major centre of the iron, steel, and chemicals industries. For this reason, it was heavily bombed in World War II. Today it boasts the world's largest inland port, with 21 docks and 40 kilometres of wharf. Status Duisburg is a city in Germany's Rhineland, the fifth-largest city (after Cologne, Düsseldorf, Dortmund and Essen) in the nation's most populous federal state of North Rhine-Westphalia. Its 500,000 inhabitants make it Germany's List of cities in Germany by p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrofluoric Acid
Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Solutions of HF are colorless, acidic and highly corrosive. A common concentration is 49% (48–52%) but there are also stronger solutions (e.g. 70%) and pure HF has a boiling point near room temperature. It is used to make most organofluorine compounds; examples include the commonly used pharmaceutical antidepressant medication fluoxetine (Prozac) and the material PTFE (Teflon). Elemental fluorine is produced from it. It is commonly used to etch glass and silicon wafers. Uses Production of organofluorine compounds The principal use of hydrofluoric acid is in organofluorine chemistry. Many organofluorine compounds are prepared using HF as the fluorine source, including Teflon, fluoropolymers, fluorocarbons, and refrigerants such as freon. Many pharmaceuticals contain fluorine. Production of inorganic fluorides Most high-volume inorganic fluoride compounds are prepared from hydrofluoric acid. Foremost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1911 Deaths
Events January * January 1 – A decade after federation, the Northern Territory and the Australian Capital Territory are added to the Commonwealth of Australia. * January 3 ** 1911 Kebin earthquake: An earthquake of 7.7 Moment magnitude scale, moment magnitude strikes near Almaty in Russian Turkestan, killing 450 or more people. ** Siege of Sidney Street in London: Two Latvian people, Latvian anarchists die, after a seven-hour siege against a combined police and military force. Home Secretary Winston Churchill arrives to oversee events. * January 4 – Comparison of the Amundsen and Scott expeditions, Amundsen and Scott expeditions: Robert Falcon Scott's British Terra Nova Expedition, ''Terra Nova'' Expedition to the South Pole arrives in the Antarctic and establishes a base camp at Cape Evans on Ross Island. * January 5 – Egypt's Zamalek SC is founded as a general sports and Association football club by Belgian lawyer George Merzbach as Q ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1835 Births
Events January–March * January 7 – anchors off the Chonos Archipelago on her second voyage, with Charles Darwin on board as naturalist. * January 8 – The United States public debt contracts to zero, for the only time in history. * January 24 – Malê Revolt: African slaves of Yoruba Muslim origin revolt against Brazilian owners at Salvador, Bahia. * January 26 ** Queen Maria II of Portugal marries Auguste de Beauharnais, 2nd Duke of Leuchtenberg, in Lisbon; he dies only two months later. ** Saint Paul's in Macau is largely destroyed by fire after a typhoon hits. * January 30 – The first assassination attempt against a President of the United States is carried out against U.S. President Andrew Jackson at the United States Capitol * February 1 – Slavery is abolished in Mauritius. * February 20 – 1835 Concepción earthquake: Concepción, Chile, is destroyed by an earthquake. The resulting tsunami destroys the neighboring city of Talcahuano. * March 2 – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoechst AG
Hoechst AG () was a German chemicals, later life sciences, company that became Aventis Deutschland after its merger with France's Rhône-Poulenc S.A. in 1999. With the new company's 2004 merger with Sanofi-Synthélabo, it became a subsidiary of the resulting Sanofi-Aventis pharmaceuticals group. History The company was founded in 1863 as "Teerfarbenfabrik Meister, Lucius & Co." in Höchst, near Frankfurt and changed its name some years later to "Teerfarbenfabrik Meister Lucius & Brüning". In 1880, it became a stock company "Farbwerke vorm. Meister Lucius & Brüning AG". For the international market the name was simplified to "Farbwerke Hoechst AG". Until 1925, the Hoechst AG was independent. In 1916, the Hoechst AG was one of the co-founders of IG Farben, an advocacy group of Germany's chemicals industry to gain industrial power during and after World War I. In 1925, IG Farben turned from an advocacy group into the well-known conglomerate. World War II Various Hoechs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honeywell
Honeywell International Inc. is an American publicly traded, multinational conglomerate corporation headquartered in Charlotte, North Carolina. It primarily operates in four areas of business: aerospace, building automation, industrial automation, and energy and sustainability solutions (ESS). Honeywell also owns and operates Sandia National Laboratories under contract with the U.S. Department of Energy. Honeywell is a Fortune 500 company, ranked 115th in 2023. In 2024, the corporation had a global workforce of approximately 102,000 employees. As of 2023, the current chairman and chief executive officer is Vimal Kapur. The corporation's name, Honeywell International Inc., is a product of the merger of Honeywell Inc. and AlliedSignal in 1999. The corporation headquarters were consolidated with AlliedSignal's headquarters in Morristown, New Jersey. The combined company chose the name "Honeywell" because of the considerable brand recognition. Honeywell was a component of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sigma-Aldrich
Sigma-Aldrich (formally MilliporeSigma) is an American chemical, life science, and biotechnology company owned by the multinational chemical conglomerate Merck Group. Sigma-Aldrich was created in 1975 by the merger of Sigma Chemical Company and Aldrich Chemical Company. It grew through various acquisitions until it had over 9,600 employees and was listed on the Fortune 1000. The company has two United States headquarters, in St. Louis and Burlington, MA and has operations in approximately 40 countries. In 2015, the multinational chemical conglomerate Merck Group acquired Sigma-Aldrich for $17 billion. The company is currently a part of Merck's life science business and in combination with Merck's earlier acquired Millipore Corporation, Millipore, operates as MilliporeSigma. It is headquartered in Burlington, Massachusetts, United States. History Sigma Chemical Company of St. Louis and Aldrich Chemical Company of Milwaukee were both American specialty chemical companies when they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frankfurt Am Main
Frankfurt am Main () is the most populous city in the States of Germany, German state of Hesse. Its 773,068 inhabitants as of 2022 make it the List of cities in Germany by population, fifth-most populous city in Germany. Located in the foreland of the Taunus on its namesake Main (river), Main, it forms a continuous conurbation with Offenbach am Main; Frankfurt Rhein-Main Regional Authority, its urban area has a population of over 2.7 million. The city is the heart of the larger Rhine-Main metropolitan region, which has a population of more than 5.8 million and is Germany's Metropolitan regions in Germany, second-largest metropolitan region after the Rhine-Ruhr metropolitan region, Rhine-Ruhr region and the List of EU metropolitan regions by GDP#2021 ranking of top four German metropolitan regions, fourth largest metropolitan region by GDP in the European Union (EU). Frankfurt is one of the ''de facto'' four main capitals of the European Union (alongside Brussels, Luxembourg Cit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassella
Cassella AG, formerly Leopold Cassella & Co. and Cassella Farbwerke Mainkur AG, commonly known as Cassella, was a German chemical and pharmaceutical company with headquarters in Frankfurt am Main. Founded in 1798, in the Frankfurt Jewish Alley by Leopold Cassella, Cassella operated as an independent company until 1995, and was one of many predecessor companies of today's Sanofi. Its main products were dyes, drugs, cosmetics and various other chemical products. From 1949, Cassella focused increasingly on pharmaceuticals and cosmetics rather than its former primary focus, dyes. Much of its history is closely associated with the Gans family, a prominent family of industrialists and philanthropists and former owners of Cassella. History The company was founded as a spice store inside the Frankfurt Jewish Alley in 1798 by the Jewish businessman Leopold Cassella and his brother-in-law Isaac Elias Reiss, and was originally named ''Cassel & Reiss''. In its early years, the company ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin-Britz
Britz () is a German locality (''Ortsteil'') within the Berlin borough (''Bezirk'') of Neukölln. History The village of ''Britzig'' was first mentioned in 1273. It was incorporated by the 1920 Greater Berlin Act. It is known for being the site of the ''Hufeisensiedlung'' ("Horseshoe Estate"), part of the UNESCO Berlin Modernism Housing Estates World Heritage Site since 2008. Public transport Britz is served by the traveling North / South from and to the terminus at Rudow (Berlin U-Bahn).Sights *Village ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin
Berlin ( ; ) is the Capital of Germany, capital and largest city of Germany, by both area and List of cities in Germany by population, population. With 3.7 million inhabitants, it has the List of cities in the European Union by population within city limits, highest population within its city limits of any city in the European Union. The city is also one of the states of Germany, being the List of German states by area, third smallest state in the country by area. Berlin is surrounded by the state of Brandenburg, and Brandenburg's capital Potsdam is nearby. The urban area of Berlin has a population of over 4.6 million and is therefore the most populous urban area in Germany. The Berlin/Brandenburg Metropolitan Region, Berlin-Brandenburg capital region has around 6.2 million inhabitants and is Germany's second-largest metropolitan region after the Rhine-Ruhr region, as well as the List of EU metropolitan areas by GDP, fifth-biggest metropolitan region by GDP in the European Union. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
