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#5761 |
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It is roasted with sodimu hexafluorosilicate, Na2SiF6, at 700°C to form beryllium fluoride. This is water soluble and the beryllium may be precipitated as the hydroxide Be(OH)2 by adjustment of the pH to 12.
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#5762 |
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Beryllium was first discovered by Vauquelin in 1797...
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#5763 |
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was not issolated until 1828 in Berlin Germany and A.A.B bussy in Paris France. Beryllium comes from Greek beryllos, beryl.
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#5764 |
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It has also been called Glucinium or Glucinum from the Greek word glykys which means "sweet." Beryllum is found in beryl, chrysoberyl and phenacite.
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#5765 |
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Aquamarine and emeralds are precious forms of beryl (3BeO.Al2O3.6SiO2). It has a high melting point for a light metal and is more elastic than steel.
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#5766 |
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Beryllium disease is not limited to workers.
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#5767 |
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"Neighborhood cases" of the disease were first documented in the 1940s when ten people not employed by Brush but who all lived within a mile of the plant and were exposed to smokestack emissions of the toxic dust were diagnosed with beryllium disease.
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#5768 |
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In 1948, the first of many cases among workers' wives was diagnosed. These women were exposed to the toxic metal dust while washing their husband's work clothes.
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#5769 |
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Beryllium is a metal, element number 4 in the Periodic Table of Elements. In nature, beryllium is found in compounds in mineral rocks, coal, soil, and volcanic dust. Beryllium is extremely strong and lightweight; it is much stronger than steel, but lighter than aluminum. These and other properties make beryllium a very useful product in missiles, nuclear weapons, aircraft parts, and ceramics. Source:
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#5770 |
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Beryllium, atomic number 4, is a brittle, steel-gray metal found as a component of coal, oil, certain rock minerals, volcanic dust, and soil. Elemental beryllium is the second lightest of all metals and is used in a wide variety of applications. In its elemental form beryllium exhibits the unique properties of being light weight and extremely stiff, giving the metal several applications in the aerospace, nuclear, and manufacturing industries. In addition, beryllium is amazingly versatile as a metal alloy where it is used in dental appliances, golf clubs, non-sparking tools, wheel chairs, and electronic devices.
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#5771 |
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Beryllium is a hard gray metal that is extracted from the earth, refined and reduced to a very fine powder. It occurs as a chemical component of certain rocks (bertrandite and beryl), coal and oil, soil, and volcanic dust. Beryllium’s light weight, high tensile strength and ability to slow neutrons have made it useful for many purposes in many industries.
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#5772 |
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Beryllium is a brittle, steel gray metal found as a component of coal, oil, certain rock minerals, volcanic dust and soil. Elemental beryllium is used in a wide variety of applications. Exposure to beryllium most often occurs in mining, extraction, and in the processing of alloy metals containing beryllium. The metal is used in the aerospace, nuclear and manufacturing industries. Source:
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#5773 |
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Beryllium is a naturally occurring metal found in beryl and bertrandite rock, certain types of coal, soil and volcanic dust. Beryllium was discovered in 1797 by Vauquelin in Paris. Pure beryllium is a hard grayish metal. Very pure gem quality beryl is better known as either aquamarine (blue or blue-green) or emerald (green). Source:
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#5774 |
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Beryllium is a very light, very strong metal with several attributes that make it attractive for several scientific applications. In its solid metallic state, beryllium poses no health hazard. But workers exposed to beryllium dust or fumes may develop CBD. Argonne and Fermilab no longer machine beryllium -- the remaining beryllium on site at both locations is primarily used to reflect and guide high-energy particles, and is in the solid, metallic, non-hazardous form
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#5775 |
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Beryllium is found in some 30 mineral species, the most important of which are bertrandite, beryl, chrysoberyl, and phenacite. Aquamarine and emerald are precious forms of beryl. Beryl and bertrandite are the most important commercial sources of the element and its compounds. Most of the metal is now prepared by reducing beryllium fluoride with magnesium metal. Beryllium metal did not become readily available to industry until 1957.
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