Used Metals essay topics
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Use Of Platinum
1,092 wordsPlatinum, symbol Pt, is a relatively rare, metallic element that is more expensive than gold. The atomic number of platinum is 78. Platinum is one of the transition elements in group 10 of the periodic table. Platinum is the most important of the group of elements called platinum metals. Also included in this group are the metals ruthenium, rhodium, palladium, osmium, and iridium. Platinum metals were probably used in alloyed forms in ancient Greece and Rome and were first mentioned in European ...
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Market For Molybdenum Products
334 wordsMolybdenum is a transition metal. It is represented by the symbol Mo. It is a pure metal that is white in color and very hard, and has one of the highest melting points of all pure elements at 4753 ^0 F. Its boiling point is 8382 ^0 F. Its density is 10280 kg / m 3 and its hardness is 5.5. It has a molar volume of 9.38 x 10-6 m 3/mol. Molybdenum has an atomic weight of 95.94 amu. Its atomic number is 42. The atomic radius is 145 pm and the covalent radius is 145 pm also. Its electron configurati...
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Use Of Lead In Paints
2,035 wordsLead, symbol Pb, dense, bluish-gray metallic element that was one of the first known metals. The atomic number of lead is 82; the element is in group 14 (or IVa) of the periodic table. Lead was mentioned in the Old Testament. It was used by the Romans for making water pipes, soldered with an alloy of lead and tin. Few metals have been used in more different ways than lead. Lead ornaments and coins have been in use since ancient times. In the Middle Ages strips of lead called cases were first use...
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Titanium Oxide
330 wordsName: Titanium Symbol: Ti Atomic Number: 22 Atomic Mass: 47.867 AMU Titanium was discovered in 1791 in the mineral named Menachanite. By the British clergyman William Gregor. He named the element menachite. Four years later, the German chemist Martin Heinrich Klaproth rediscovered the element in the mineral Rutile and named it titanium for the strength of the mythological Greek Titans. The metal was isolated in 1910. It is the 9th most abundant among the elements in the crust of the earth but is...
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Unalloyed Metal Of Magnesium
1,385 wordsMagnesium is the twelfth element on the periodic table. It is located in the second group called the alkaline earth metals. Natural magnesium contains three different isotopes, and there are twelve others that are recognized. Seawater is a rich source of magnesium in the form of salt. Magnesium is the eighth most abundant element in the earth's crust. Magnesium readily ignites upon heating in air and burns with a dazzling white flame. To extinguish the flame water should not be used. Alkaline ea...
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Use Copper In Their Blood
1,167 wordsWeil 1 Copper is one of the earliest elements known to man. Because of its distinct red color, Copper is very easily identified. In the ancient times, copper could be found lying in the ground in its unattached state without interaction to other substances. Copper and its compounds have many uses in today's society. Copper has many chemical properties that make it unique. The Atomic number of copper is 29. An Atomic number is a measure of the amount of protons in the nucleus of an atom. Protons ...
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Metaphor For The Use Of The Dagger
1,322 wordsThe ornamental daggers of the late bronze age found in the shaft graves at Mycenae, that date between 1550, and 1500 B.C. were made by Cretans for the mainland market. Even though these daggers were made in Crete none have ever been found there. Some other places where similar daggers have been found are the island of Thera, Vapheio, Pylos, and the Argive Hera eum. This shows that there was trade among all of those places during the time period that the daggers were made. Most of the daggers wer...
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Most Common Sodium Compounds
408 wordsLife could not exist without compounds of sodium. These compounds hold water in body tissues, and a severe deficiency of sodium can cause death. Blood contains sodium compounds in solution. Sodium compounds are used in industry in the manufacture of chemicals and pharmaceuticals, in metallurgy, in sodium vapor lamps, and in the production of hundreds of every day products. One of the most common sodium compounds is table salt, or sodium chloride. In its pure form sodium is a silver-white, soft a...
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Temperature Pressure Relationship In Hydrogen
1,360 wordsHydrogen: the most abundant element in the universe. Normally it has been considered to remain anon-metal at any range of temperatures and pressures. That is, until now. Recently this year, hydrogen was changed into a metallic substance, which could conduct electricity. An experiment conducted by William J. Nellis et al. at the Lawrence Livermore National Laboratory accomplished this feat. Hydrogen was converted from a non-metallic liquid, into a liquid metal. The likelihood that the most abunda...
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Of The Methods Alchemists
941 wordsAlchemy Alchemy was a major part of medieval times. Its practitioners' main goals were transmutation and transcendence. Alchemy used the elements of Nature in their experiments. Only later were our elements of today adopted. Alchemists also invented many new methods to use for getting pure forms of the elements. Alchemy is responsible for many of the techniques and methods in use today as well as for the many New Age sciences. Alchemy is one of the more important developments of the Middle Ages....
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Aluminum Into Useful Products
2,198 wordsAluminum Aluminum is a lightweight, silver-colored metal that can be formed into almost any shape. It can be rolled into thick plates for armored tanks or into thin foil for chewing gum wrappers. It may be drawn into wire or made into cans. Aluminum does not rust, and it resists wear from weather and chemicals. Aluminum is called aluminium in English-speaking countries outside the United States. Its atomic number is 13 and its atomic weight is 26.9815. Pure aluminum, known as Al on the periodic ...
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Sulfite Toxicity Due To Molybdenum Deficiency
907 wordsHistory of Molybdenum Before Carl Wilhelm Schiele recognized Molybdenum in 1778 as a new element, it was often confused with Graphite or lead ore. That is where the name Molybdenum originates from, the Greek word molubdos, meaning lead. The metal was prepared as an impure form by Helm in 1782. Molybdenum does not occur as an element in nature, but as principally Molybdenite, with Wulfenite and Powerlite as minor commercial ores. Molybdenum is now used today in many different commercial, househol...
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Hydrogen Sulfide In The Air
605 wordsHello my fellow readers. My name is Silver. My name comes from the Anglo-Saxon word of Siolfur. Some people call me Ag for short (Ag stands argentum.) I am a white shinny metal. Since I am a white shinny metal argentum is the Latin word for white and shinning. I live in the periodic table of elements and my address is 47. I usually weigh 107.868. I am solid at room temperature. Copper and gold are my good friends and they make me strong and help me to be more durable. You can find me almost anyw...
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Changing Of Base Metals Into Gold
678 wordsAlchemy is not just the changing of base metals into gold as most people think, although that was one of the goals people tried to achieve through alchemy. Alchemy is stemmed from astrology; both make attempts to understand mans relationship to the universe and exploit it. While astrology is concerned with the stars alchemy is concerned with the elements of nature. Alchemy also stemmed partly from metallurgy, a science that deals with the extracting of metals form ore and the combining of metals...
