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Pennsylvania Salt Manufacturing Company
Arkema S.A. is a publicly listed, multi-national manufacturer of specialty materials, headquartered in Colombes, near Paris, France. It has three specialty materials segments (or divisions); adhesives, advanced materials and coatings. A further segment covers chemical intermediates. The company was created in 2004, as part of French oil major Total's restructuring of its chemicals business, and floated on the Paris stock exchange in May 2006. Turnover in 2021 was €9.5 billion. Arkema operates in more than 55 countries and has 20,200 employees, 13 research centers and 144 production plants. History Arkema itself was created when French oil major Total restructured its chemicals business in 2004, but the company's roots go back many years. Origin and evolution In 1971, Elf and Total merged their chemical operations into Aquitaine Total Organico (ATO), a joint subsidiary. The same year saw the creation of Produits Chimiques Ugine Kuhlmann (PCUK). The joint venture was ...
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CAC Next 20
The CAC Next 20 is an index of security prices used with the Euronext Paris or Euronext Amsterdam. It gathers the 20 companies whose market capitalizations are ranked after those of the 40 companies who compose the CAC 40. These 20 are possible candidates to replace the members of the CAC 40 index. The CAC Next 20 was launched on 31 December 2002. Like the CAC 40, this new index is calculated uninterruptedly every 30 seconds. Composition The following is the list of the CAC Next 20 companies as of 5 November 2021. See also * CAC 40 * CAC Mid 60 * List of companies of France A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College, an undergraduate division of the Jewish Theological Seminary of America * SC Germania List, German rugby union ... References External links Official Euronext CAC Next 20 page {{Euronext topics French stock market indices Lists of companies of France ...
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Chlorofluorocarbon
Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F), produced as volatile derivatives of methane, ethane, and propane. They are also commonly known by the DuPont brand name Freon. The most common representative is dichlorodifluoromethane (R-12 or Freon-12). Many CFCs have been widely used as refrigerants, propellants (in aerosol applications), and solvents. Because CFCs contribute to ozone depletion in the upper atmosphere, the manufacture of such compounds has been phased out under the Montreal Protocol, and they are being replaced with other products such as hydrofluorocarbons (HFCs) including R-410A and R-134a. Structure, properties and production As in simpler alkanes, carbon in the CFCs bond with tetrahedral symmetry. Because the fluorine and chlorine atoms differ greatly in size and effective charge from hydrogen and from each other, t ...
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Urea-formaldehyde
Urea-formaldehyde (UF), also known as urea-methanal, so named for its common synthesis pathway and overall structure, is a nontransparent thermosetting resin or polymer. It is produced from urea and formaldehyde. These resins are used in adhesives, plywood, particle board, medium-density fibreboard (MDF), and molded objects. UF and relate amino resins are a class of thermosetting resins of which urea-formaldehyde resins make up 80% produced worldwide. Examples of amino resins use include in automobile tires to improve the bonding of rubber to in paper for improving tear strength, in molding electrical devices, jar caps, etc. History UF was first synthesized in 1884 by Dr Hölzer, who was working with Bernhard Tollens, neither of whom realized that the urea and formaldehyde were polymerizing. In the following years a large number of authors worked on the structure of these resins. In 1896, Carl Goldschmidt investigated the reaction further. He also obtained an amorphous, almos ...
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Agrochemicals
An agrochemical or agrichemical, a contraction of ''agricultural chemical'', is a chemical product used in industrial agriculture. Agrichemical refers to biocides (pesticides including insecticides, herbicides, fungicides and nematicides) and synthetic fertilizers. It may also include hormones and other chemical growth agents. Agrochemicals are counted among speciality chemicals. Categories Biological action In most of the cases, agrochemicals refer to pesticides. *Pesticides **Insecticides **Herbicides **Fungicides **Algaecides **Rodenticides **Molluscicides **Nematicides *Fertilisers *Soil conditioners * Liming and acidifying agents *Plant growth regulators Application method *Fumigants * Penetrant Ecology Many agrochemicals are toxic, and agrichemicals in bulk storage may pose significant environmental and/or health risks, particularly in the event of accidental spills. In many countries, use of agrichemicals is highly regulated. Government-issued permits for purchase an ...
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Organic Peroxides
In organic chemistry, organic peroxides are organic compounds containing the peroxide functional group (). If the R′ is hydrogen, the compounds are called hydroperoxides, which are discussed in that article. The O−O bond of peroxides easily breaks, producing free radicals of the form (the dot represents an unpaired electron). Thus, organic peroxides are useful as initiators for some types of polymerisation, such as the epoxy resins used in glass-reinforced plastics. MEKP and benzoyl peroxide are commonly used for this purpose. However, the same property also means that organic peroxides can explosively combust. Organic peroxides, like their inorganic counterparts, are often powerful bleaching agents. Types of organic peroxides Tert-Butyl hydroperoxide Structural Formula V2.svg, ''tert''-Butyl hydroperoxide, a hydroperoxide (formula: ROOH) that is used to epoxide alkenes. Dicumyl peroxide.svg, Dicumyl peroxide, a dialkyl peroxide (formula: ROOR) that is used to initiate po ...
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Fluorochemical Industry
The global market for chemicals from fluorine was about US$16 billion per year as of 2006. The industry was predicted to reach 2.6 million metric tons per year by 2015. The largest market is the United States. Western Europe is the second largest. Asia Pacific is the fastest growing region of production. China in particular has experienced significant growth as a fluorochemical market and is becoming a producer of them as well. Fluorite mining (the main source of fluorine) was estimated in 2003 to be a $550 million industry, extracting 4.5 million tons per year. Mined fluorite is separated into two main grades, with about equal production of each. ''Acidspar'' is at least 97% CaF2; ''metspar'' is much lower purity, 60–85%. (A small amount of the intermediate, ''ceramic'', grade is also made.) Metspar is used almost exclusively for iron smelting. Acidspar is primarily converted to hydrofluoric acid (by reaction with sulfuric acid). The resultant HF is mos ...
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Elf Aquitaine
Elf Aquitaine is a French brand of oils and other motor products (such as brake fluids) for automobiles and trucks. Elf is a former petroleum company which merged with TotalFina to form "TotalFinaElf". The new company changed its name to Total in 2003 and TotalEnergies in 2021. Elf has been as a major brand of TotalEnergies since then. History Founding and mergers (1965-1993) Elf Aquitaine's heritage is rooted among three French oil companies: Régie Autonome des Pétroles (RAP), Société Nationale des Pétroles d'Aquitaine (SNPA), and Bureau de Recherches de Pétroles (BRP). These companies were formed to exploit the discovery of a gas field in Saint-Marcet in the Aquitaine region of south-western France. In December 1965, RAP and BRP were merged to form Entreprise de Recherches et d'Activités Pétrolières (ERAP). ERAP had SNPA, Union Générale des Pétroles (UGP), and Union Industrielle des Pétroles (UIP) as subsidiaries. The resulting company achieved vertical integratio ...
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Pennsylvania Salt Manufacturing Company 1879
Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, Maryland to its south, West Virginia to its southwest, Ohio to its west, Lake Erie and the Canadian province of Ontario to its northwest, New York to its north, and the Delaware River and New Jersey to its east. Pennsylvania is the fifth-most populous state in the nation with over 13 million residents as of 2020. It is the 33rd-largest state by area and ranks ninth among all states in population density. The southeastern Delaware Valley metropolitan area comprises and surrounds Philadelphia, the state's largest and nation's sixth most populous city. Another 2.37 million reside in Greater Pittsburgh in the southwest, centered around Pittsburgh, the state's second-largest and Western Pennsylvania's largest city. The state's subsequent f ...
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Paris Bourse
Euronext Paris is France's securities market, formerly known as the Paris Bourse, which merged with the Amsterdam, Lisbon, and Brussels exchanges in September 2000 to form Euronext NV. As of 2022, the 795 companies listed had a combined market capitalization of over US$4.5 trillion. Euronext Paris, the French branch of Euronext, is Europe's second-largest stock exchange market, behind the London Stock Exchange. History In the early 19th century, the Paris Bourse's activities found a stable location at the ''Palais Brongniart'', or ''Palais de la Bourse'', built to the designs of architect Alexandre-Théodore Brongniart from 1808 to 1813 and completed by Éloi Labarre from 1813 to 1826.Ayers 2004, pp. 61–62. Brongniart had spontaneously submitted his project, which was a rectangular neoclassical Roman temple with a giant Corinthian colonnade enclosing a vaulted and arcaded central chamber. His designs were greatly admired by Napoleon and won Brongniart a major public comm ...
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Total S
Total may refer to: Mathematics * Total, the summation of a set of numbers * Total order, a partial order without incomparable pairs * Total relation, which may also mean ** connected relation (a binary relation in which any two elements are comparable). * Total function, a partial function that is also a total relation Business * TotalEnergies, a French petroleum company * Total (cereal), a food brand by General Mills * Total, a brand of strained yogurt made by Fage * Total, a database management system marketed by Cincom Systems * Total Linhas Aéreas - a brazilian airline * Total, a line of dental products by Colgate Music and culture * Total (group), an American R&B girl group * '' Total: From Joy Division to New Order'', a compilation album * ''Total'' (Sebastian album) * ''Total'' (Total album) * ''Total'' (Teenage Bottlerocket album) * ''Total'' (Seigmen album) * ''Total'' (Wanessa album) * ''Total'' (Belinda Peregrín album) * ''Total 1'', an annual compilation alb ...
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