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Nickel
built 632 days ago
Nickel hydroxide is used in nickel-cadmium batteries and as a chemical intermediary for nickel catalysts and nickel salts. The hydrogenation of finely powdered newspaper with a nickel hydroxide catalyst produces conversion in high yields of cellulose feed materials to liquid hydrocarbon fuels.
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Nickel (Ni) is the fifth most abundant element in the earth, but it is rare in crustal rocks. Elemental nickel is a silvery, hard, ductile metal with a moderately high melting temperature and a relatively high specific gravity (8.9). The main use of nickel is as an alloy in steel and cast iron. Nickel is vital to the stainless steel industry and played a key role in the 20th century in the development of the chemical and aerospace industries. It is used in nonferrous alloys, heat- and electricity-resistant alloys, and in plating. Nickel gives its alloys toughness, strength, corrosion resistance, and special electrical, thermal, and magnetic qualities.
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Nickels have always had a value of one cent per gram (even when special nickel-free versions were issued temporarily during World War II). They were designed as 5 grams in the metric units when they were introduced in 1866, shortly before the
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A new Nickel, designed by Felix Schlag, appeared in 1938. This was the third coin to feature an American president, Thomas Jefferson (coincidentally, the third American president). In 1943, demand for Nickel as a strategic metal in World War II, forced the Mint to return to a silver-based composition for the “Nickel,” an emergency measure that lasted through 1945. All of the dates in this series are easily obtained with the exception of the “S”-less Nickel produced in 1971.
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Nickel occurs in a number of minerals; its chief ores are pentlandite and pyrrhotite (nickel-iron sulfides) and garnierite (nickel-magnesium silicate). Nickel is present in most meteorites. It is ... found in trace amounts in plants and animals. Nickel sulfide ores are concentrated by the flotation process, then smelted or roasted to partially convert them to the oxide form, and further treated in a Bessemer converter to form a matte. The metal is separated from copper and other metals present in the Bessemer matte by electrorefining or chemical methods (see Mond process under Mond, Ludwig). The end product is in the form of nickel cathodes, pellets, or powder.
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Nickel's was created in 1990 by the singer Celine Dion, her husband and manager René Angelil, Paul Sara, Peter Mammas and Lawrence Mammas. The name of the restaurant was decided by Mrs. Dion herself. She chosen the name [N]ickel's because she thought that 5 was her lucky number (In Canada, 5 cents are made of nickel). So they started selling smoked-meat and spaghetti for only 5 cents.
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