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beryllium
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nature : Periodic System II of the main ethnic group elements. Births 4. Stability is the same place : 9. Amu 9.012182. Light gray metal. There stretchability and hard. Density 1.85. Alkali is the lightest metal. 1285 ° C melting point. The boiling point of 2970 ° C The main valence +2. When the air temperature stable and the similar nature of aluminum, can form a protective oxide layer, high-temperature combustion oxide formation. Do not dissolve in water, water-soluble and insoluble diluted hydrochloric acid, dilute sulfuric acid and potassium hydroxide solution and release hydrogen, are soluble in cold concentrated nitric acid. Roentgen ray tube used in the system, beryllium alloys, beryllium-copper alloy (Health sparks), but also for atomic reactors for the moderator (results than hydrogen, deuterium, helium are good) and neutron reflectors, electrical and electronic industries and spacecraft materials. Beryl exist in the natural world ore. By molten chloride solution beryllium or beryllium hydroxide in the system. Beryllium compounds toxic, can cause dermatitis or chronic diseases.


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More Detailed Data:
1) Beryllium
2) beryllium
3) beryllium
4) Beryllium;beryllium dust;beryllium metal;beryllium, elemental;beryllium, metal powder;beryllium-9
5) beryllium
6) atomic beryllium
7) atomic beryllium
8) diphenylberyllium
9) dipropylberyllium;beryllium dipropyl
10) dimethyl beryllium
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