High Quality Content by WIKIPEDIA articles! Christopher W. Werner (1805–1875) was a well known nineteenth-century wrought iron manufacturer, artisan and entrepreneur from the state of South Carolina, USA.
High Quality Content by WIKIPEDIA articles! Chromium hydride is a chemical compound of chromium and hydrogen. It can take form as a gas that has reactive two-atom molecules with formula CrH. It is found as a gas naturally in cooler stars, and in cooler places on the Sun in sunspots. It can also occur as a dull brown or dark grey solid in two different crystalline forms: face centred cubic with formula CrH2 or a close packed hexagonal solid with formula CrH. Chromium hydride is important in chrome plating, being an intermediate in the formation of the chromium plate.
High Quality Content by WIKIPEDIA articles! Chromium(II) acetate hydrate, also known as chromous acetate, is the coordination compound with the formula Cr2(CH3CO2)4(H2O)2. This formula is commonly abbreviated Cr2(OAc)4(H2O)2. This red-coloured compound features a quadruple bond. The preparation of chromous acetate once was a standard test of the synthetic skills of students due to its sensitivity to air and the dramatic colour changes that accompany its oxidation. It exists as the dihydrate and the anhydrous forms.
High Quality Content by WIKIPEDIA articles! The Cimbri were a Germanic tribe, who together with the Teutones and the Ambrones fought the Roman Republic between 113 and 101 BC. The Cimbri were initially successful, particularly at the Battle of Arausio, in which up to 120,000 Roman soldiers were killed, after which they raided large areas in Gaul and Hispania. In 101 BC, during an attempted invasion of Italy, the Cimbri were decisively defeated by Gaius Marius, and their King Boiorix was killed. Some of the surviving captives are reported to have been among the rebeling Gladiators in the Third Servile War. A contemperorary Germanic community in Northern Italy who speak the Cimbrian language, is also known as the Cimbri.
High Quality Content by WIKIPEDIA articles! Cladribine (trade names Litak and Movectro) is a drug used to treat hairy cell leukemia (HCL, leukemic reticuloendotheliosis) and multiple sclerosis. Its chemical name is 2-chlorodeoxyadenosine (2CDA).
High Quality Content by WIKIPEDIA articles! Clioquinol (Iodochlorhydroxyquin) is an antifungal drug and antiprotozoal drug. It is neurotoxic in large doses. It is a member of a family of drugs called hydroxyquinolines which inhibit certain enzymes related to DNA replication. The drugs have been found to have activity against both viral and protozoal infections.
High Quality Content by WIKIPEDIA articles! Clobazam (marketed under the brand names Frisium, Urbanol and Onfi), is a drug which is a benzodiazepine derivative. It has been marketed as an anxiolytic since 1975 and an anticonvulsant since 1984. It has also been used incorrectly in combination with several injectable contraceptives.
High Quality Content by WIKIPEDIA articles! Clomipramine (Anafranil) is a tricyclic antidepressant (TCA). It was developed in the 1960s by the Swiss drug manufacturer Geigy (now known as Novartis) and has been in clinical use worldwide ever since.
High Quality Content by WIKIPEDIA articles! Clonazepamis a benzodiazepine drug having anxiolytic, anticonvulsant, muscle relaxant, and hypnotic properties. It is marketed by Roche under the trade name Klonopin in the United States and Rivotril in Australia, Brazil, Canada and Europe(and in countries like Serbia, Macedonia, Croatia and Montenegro). Other names such as Ravotril, Rivatril, Clonex, Paxam, or Kriadex are known throughout the rest of the world. Clonazepam has an unusually long half-life of 18–50 hours, making it generally considered to be among the long-acting benzodiazepines. Clonazepam is a chlorinated derivative of nitrazepam and therefore a chloro-nitrobenzodiazepine.
High Quality Content by WIKIPEDIA articles! Clopidogrel is an oral, thienopyridine class antiplatelet agent used to inhibit blood clots in coronary artery disease, peripheral vascular disease, and cerebrovascular disease. It is marketed by Bristol-Myers Squibb and Sanofi-Aventis under the trade name Plavix. The drug works by irreversibly inhibiting a receptor called P2Y12, an adenosine diphosphate ADP chemoreceptor. Adverse effects include hemorrhage, severe neutropenia, and thrombotic thrombocytopenic purpura (TTP).
High Quality Content by WIKIPEDIA articles! Clorazepate (marketed under the brand names Tranxene and Novo-Clopate), also known as clorazepate dipotassium, is a drug that is a benzodiazepine derivative. It possesses anxiolytic, anticonvulsant, sedative, hypnotic and skeletal muscle relaxant properties. Clorazepate is a prodrug for desmethyldiazepam, which is rapidly produced as an active metabolite. Desmethyldiazepam is responsible for most of the therapeutic effects of clorazepate.
High Quality Content by WIKIPEDIA articles! Coconinoite is a uranium ore that was discovered in Coconino County, Arizona. It is a phosphate mineral; or uranyal phosphate mineral along with other subclass uranium U6+ minerals like blatonite, boltwoodite, metazeunerite and rutherfordine.
High Quality Content by WIKIPEDIA articles! Cold fusion, also called low-energy nuclear reaction (LENR), refers to the hypothesis that nuclear fusion might explain the results of a group of experiments conducted at ordinary temperatures (e.g., room temperature). Both the experimental results and the hypothesis are disputed. The ideas gained attention after the reports of Martin Fleischmann, then one of the world`s leading electrochemists, and Stanley Pons in 1989 that they had produced anomalous heat ("excess heat") of a magnitude they asserted would defy explanation except in terms of nuclear processes. They further reported measuring small amounts of nuclear reaction byproducts, including neutrons and tritium. The small tabletop...
High Quality Content by WIKIPEDIA articles! Collinsite is a mineral with formula Ca2(Mg,Fe2+)(PO4)2·2H2O. It was discovered in British Columbia, Canada, and formally described in 1927. It was named in honor of William Henry Collins, director of the Geological Survey of Canada. There are three varieties of the mineral: magnesian collinsite, zincian collinsite, and strontian collinsite. The crystal structure consists of polyhedral chains linked by weak hydrogen bonds.
High Quality Content by WIKIPEDIA articles! Compounds of zinc are chemical compounds containing the element zinc which is a member of the group 12 of the periodic table. The oxidation state of most compounds is the group oxidation state of +2. Zinc may be classified as a post-transition main group element with zinc(II) having much chemical behaviour in common with copper(II). Many salts of zinc(II) are isomorphous with salts of magnesium(II) due to the ionic radii of the cations being almost the same. Zinc forms many complexes; metallo-proteins containing zinc are widespread in biological systems.
High Quality Content by WIKIPEDIA articles! Berkelium forms a number of chemical compounds, where it normally exists in an oxidation state of +3 or +4, and behaves similarly to its lanthanide analogue, terbium. Like all actinides, berkelium easily dissolves in various aqueous inorganic acids, liberating gaseous hydrogen and converting into the trivalent oxidation state. This trivalent state is the most stable, especially in aqueous solutions, but tetravalent berkelium compounds are also known. The existence of divalent berkelium salts is uncertain and has only been reported in mixed lanthanum chloride-strontium chloride melts. Aqueous solutions of Bk3+ ions are green in most acids. The color of the Bk4+ ions is yellow in hydrochloric...
High Quality Content by WIKIPEDIA articles! Compounds of carbon are defined as chemical substances containing carbon. More compounds of carbon exist than any other chemical element except for hydrogen. Organic carbon compounds are more abundant than inorganic carbon compounds. In general bonds of carbon with other elements are covalent bonds. Carbon is tetravalent but carbon free radicals and carbenes occur as short-lived intermediates. Ions of carbon are carbocations and carbanions and are also short-lived. An important carbon property is catenation as the ability to form long carbon chains and rings.
High Quality Content by WIKIPEDIA articles! Compounds of lead exist mainly in two main oxidation states, +2 and +4. The former is more common. Inorganic lead(IV) compounds are typically strong oxidants or exist only in highly acidic solutions.
High Quality Content by WIKIPEDIA articles! Constantan is a copper-nickel alloy usually consisting of 55% copper and 45% nickel. Also known as Eureka. Its main feature is its resistivity which is constant over a wide range of temperatures. Other alloys with similarly low temperature coefficients are known, such as manganin (Cu86Mn12Ni2).
High Quality Content by WIKIPEDIA articles! The Constantine ruble is a rare silver coin of the Russian Empire bearing the profile of Constantine, the brother of emperors Alexander I and Nicholas I. It was prepared to be manufactured at the Saint Petersburg Mint during the brief Interregnum of 1825 but has never been minted in numbers and never circulated in public. The fact of its existence, classified in Russia until 1886, leaked into European press in 1857.
High Quality Content by WIKIPEDIA articles! The Copper Scroll (3Q15) is one of the Dead Sea Scrolls found in Cave 3 near Khirbet Qumran, but differs significantly from the others. Whereas the other scrolls are written on parchment or papyrus, this scroll is written on metal: copper mixed with about 1 percent tin. Unlike the others, it is not a literary work, but a list of locations at which various items of gold and silver are buried or hidden. It differs from the other scrolls in its Hebrew (closer to the language of the Mishnah than to the literary Hebrew of the other scrolls, though 4QMMT shares some language characteristics), its orthography (i.e., its spelling), palaeography (forms of letters) and date (c.50-100 AD, possibly...