Among the metal catalysts useful for this reaction in the laboratory are finely divided nickel, platinum, palladium, and rhodium. |
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Crafted from brick coloured bridle cowhide, it is hand saddle-stitched and linked with palladium brass carabiners and rings. |
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The monolith is coated first with oxides, then a layer of metals such as platinum, rhodium, and palladium is added. |
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Bromine even reacts with relatively inert elements such as platinum and palladium. |
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The icon of the Virgin of Vladimir acts in a similar way as a palladium of the Russian Church and state. |
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The catalyst, which was first studied for use in catalytic converters in the early 1970s, includes the mineral perovskite with palladium. |
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It is also classified with a group of similar metals, including ruthenium, rhodium, palladium, osmium, and iridium, with similar properties. |
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It is especially effective in removing heavy metals from the body such as mercury and palladium. |
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The first catalytic converters used mainly platinum, but now palladium is the predominant catalytic metal. |
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Most converters use platinum or palladium metal catalysts that convert carbon monoxide and hydrocarbons to carbon dioxide and water vapor. |
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Vixum is best remembered for installing the Phra Bang as the palladium of the Lan xang kings. |
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White gold, which is a mixture of gold, silver, copper and palladium, is now considered to be more trendy than real gold. |
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Researchers report that palladium atoms present at parts-per-million quantities in a polymer LED cause the material to phosphoresce. |
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Accordingly anticathodes of palladium and rhodium were produced, which fully answered the purpose in view. |
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Like water beading on the surface of a freshly waxed car, the palladium formed granular clusters just a few nanometers across. |
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The amount of palladium used in autocatalysts in the 1990s was very high compared to platinum. |
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Besides gold and diamonds, the area is rich in copper, uranium, palladium and cobalt, as well as coltan ore. |
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The catalyst comprises a support containing palladium and silver and having a uniformly round external surface. |
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Weak palladium and rhodium prices also affected its precious metals division, though demand for platinum helped to cushion the fall. |
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Wollaston found two new elements, rhodium and palladium, in an ore found originally in South America. |
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In addition to palladium and its alloys, other metals and oxides in nonporous forms are known to be selectively permeable to some gases. |
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Switzerland's Zurich Cantonal Bank was expected this week to launch an ETF based on platinum, palladium and silver. |
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The primary palladium supply to market economy countries continued to run ahead of demand in 2005 for the fifth consecutive year. |
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A beautifull humidor for your living room or your office, made in macassar wood and chinese laquer, decorated with a palladium rod. |
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To obtain a different angulation, using a customizable abutments or a gold palladium abutment. |
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White gold is an alloy of gold and white metals like silver, platinum and palladium. |
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Each year sees the appearance of new developments and trends, going from yellow to red and to white gold, platinum and more recently palladium. |
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The prints were made by placing leafy plants near paper that had been photochemically treated with palladium salts. |
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If platinum, palladium, or rhodium are present, they dissolve in the molten lead and are collected in the gold-silver bead after cupellation. |
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It is next sensitized and activated by first dipping in stannous chloride solution and then in palladium chloride solution. |
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The demand for ruthenium and iridium is much lower than that for platinum or palladium. |
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The discovery of palladium was claimed in 1802 by the English chemist William Wollaston, who named it for the asteroid Pallas. |
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Long story short, this development allows Mazda to reduce their use of scarce resources such as platinum and palladium. |
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The bulk of platinum, palladium, and rhodium scrap is found in automotive catalytic converters. |
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Owing to their complementary properties platinum, palladium and rhodium are most frequently used together in the formulation of an autocatalyst. |
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A hard metal, rhodium is employed as an alloying agent to increase the hardness of platinum and palladium. |
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The interior of the catalytic converter contains the precious metals platinum, rhodium and palladium. |
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The most commonly used metals for the storage of tritium gas are uranium, titanium, palladium and alloys of vanadium and iron. |
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Dr Negishi, of Purdue University, then went on to improve the process, by involving zinc-based compounds in addition to the palladium. |
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Although cheaper palladium is increasingly used in new petrol vehicles, platinum is still the only practical option for diesel. |
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A choice of three materials for the case: palladium, pink gold and titanium. |
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Canada's only palladium mine, near Thunder Bay, Ontario, also recovers gold, platinum and base metals. |
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The uranium beds and the palladium bed comprise a stainless steel primary containment with an external electric heater. |
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The heart of the innovation is an ultra-thin soleplate coating with a few milligrams of palladium. |
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The use of the palladium bed reduces the time and the temperature that the bed has to be heated. |
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Jewellery made of platinum, iridium and palladium gleamed majestically, now and then emitting flashes of brilliant light from the studded diamonds. |
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These catalysts are commonly platinum, or palladium and rhodium. |
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Other methods for achieving aromatization involve the use of elemental palladium, platinum, nickel, sulfur or selenium, activated charcoal or quinones. |
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Zirconium, palladium, and ruthenium make up a metal that repairs itself. |
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The connection is provided by utilizing a conductive adhesive wherein the conduction is provided by metal particles which have exposed palladium thereon. |
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Kurt and Courtney met the second time in May 1991 during an L7 concert at the palladium in Los Angeles. |
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But since it was divested of most of its assets, it now concentrates on mining rare metals such as platinum, palladium and rhodium in Africa and other regions. |
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There is a growing interest in the assessment of health risks posed by increased human exposure to some platinum group metals, namely platinum, rhodium and palladium. |
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A large part of this was related to investment in natural resources, supported by a strong rise in global commodity prices and growing demand for diamonds, gold, oil, platinum and palladium. |
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Thieves are often after the small amounts of platinum, palladium and other noble metals used in their construction. |
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Russia-based OAO Norilsk Nickel, a nickel and palladium producer, has hired Barclays Plc to sell the majority of its international assets. |
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A theoretical study of the role of an anionic palladium complex in the cross-coupling of an aryl halide with an anionic nucleophile. |
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Apart from manufacturing as such, we offer a manufacturing-waste refining and recycling service and transparently manage the customer's gold, silver, platinum and palladium accounts. |
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Umicore's latest development for the final finishing of printed circuit boards is based on an extremely thin palladium layer as part of a chemical coating process not using electrical current. |
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After the evaporation of the excessive acid in solution, palladium dicyanide was precipitated. |
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This novel arrangement seems to change the palladium atom's so-called oxidation state, or oxidation number. |
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After the palladium salts are recovered by filtration, they are redissolved and reprecipitated to form a pure salt, and this is converted to metallic form, usually by chemical reduction with formic acid. |
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The reduced availability of end-of-life materials was brought about in part by the lower price of certain key metals such as palladium and rhodium. |
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A particularly tricky process involves dipping fibre into sulphuric acid to create toeholds that, after being soaked in palladium salt and a nickel-plating solution, become encrusted with nickel crystals. |
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Because of the high price of palladium and patients' esthetic requirements, the global demand for precious metal alloys will stagnate over the next few years. |
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The demand for platinum, palladium and rhodium in the manufacture of autocats has increasingly defined the PGM markets. |
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This enables Umicore to maximize the recovery of precious metals such as platinum, palladium, rhodium, ruthenium and iridium that have become so crucial to so many hi-tech applications. |
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As Russia's stocks diminish further and South Africa's production remains stable, Johnson Matthey reckons the palladium price will rise in the next six months. |
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Furthermore, although the use of palladium has increased in proportion to platinum, the market demand for platinum will continue as platinum will remain the most essential element for use in autocatalysts. |
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A highlight of the 2001 field season was the discovery of anomalous platinum, palladium and gold in a gossanous outcrop within a layered mafic intrusion. |
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Before making improvements, a variety of refining processes were needed order to separate each metal: gold had to be laboriously separated from the silver, the platinum from the palladium, and so on. |
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Alloys containing palladium or nickel are also important in commercial jewelry as these produce white gold alloys. |
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In processes such as the dehydrogenation of isopropyl alcohol, it is a far more effective catalyst than either rhenium or palladium. |
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A small quantity of metal, such as palladium, is added to boost conductivity. Making things with viruses in this case a common bacteriophage which infects bacteria but is harmless to humans might seem unusual. |
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And nickel processing provides cobalt, palladium, rhodium and scandium. |
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The palladium is presumed to be repeatedly converted from the salt to the free metal, the function of the cupric chloride being to participate in the re-formation of the palladium salt from the metal. |
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In 1803-1804 Smithson Tennant discovered osmium and iridium, and William Hyde Wollaston found rhodium and palladium. |
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Noront Resources also announced high-grade assay results from its Eagle's Nest copper, nickel, platinum and palladium deposit in the Ring of Fire site. |
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Summer ring mounted on antiallergic costume jewellery of golden palladium. |
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Because nitrogen is less of an electron donor toward palladium than a second phosphorus, it's a kind of 'goldilocks' situation. |
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Even with all the controversy, Kumar sees a sizable run-up coming in the recycling of platinum and palladium. |
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Iron, cobalt, nickel, copper, zinc, ruthenium, rhodium, palladium, silver, cadmium, tin, iridium, platinum, gold, and lead are more or less commonly used for plating. |
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These arise through re-addition of the initially formed palladium hydride and subsequent antielimination of the trimethylsilyl and palladium moieties. |
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Under these conditions, the free carboxylic groups available in gelatin act as palladium reductants in the presence of heat and produce palladium metallic nanocatalyst. |
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Alloys with lower karat rating, typically 22k, 18k, 14k or 10k, contain higher percentages of copper or other base metals or silver or palladium in the alloy. |
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Like rhenium and palladium, technetium can serve as a catalyst. |
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In brachytherapy, 40 to 100 rice-sized titanium capsules containing radioactive iodine or palladium pellets are inserted into a man's prostate using a long, hollow needle. |
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Norilsk Nickel is the world's biggest nickel and palladium producer. |
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Both platinum and palladium used in autocatalysts have come under pressure in recent months as markets tried to factor slower economic growth and demand. |
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According to ACS, the researchers discovered high concentrations of platinum, palladium, rhodium and osmium in air over the Boston metropolitan area. |
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The goal for our research was to synthesize new palladium complexes that contain a variety of ligands with tert-butyl and neopentyl groups attatched to a phosphine center. |
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