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용도Beryllium hydroxide is a strategic component concerning the usage of beryllium metal and its compounds in industry. Beryllium hydroxide is the key compound used to prepare a variety of beryllium products.Note that Be(OH)2 is the primary product used to prepare the metal and various beryllium salts. The largest usage of beryllium hydroxide is to make the oxide or the metal that is used in many industries. The total tonnage is not large but substantial. Beryllium hydroxide is available commercially in large quantities.

Beryllium hydroxide, Be(OH)2, is an amphoteric hydroxide, dissolving in both acids and alkalis. Industrially it is produced as a by-product in the extraction of beryllium metal from the ores, “beryl” and “bertrandite” When alkali is added to beryllium salt solutions, the a-form (a gel) is formed. If this left to stand or boiled the rhombic b-form precipitates. This has the Zn(OH)2 structure with tetrahedral beryllium centers. The alkali dissolution forms a “beryllate”: 2NaOH(aq)＋Be(OH)2(solid) → Na2Be(OH)4(aq) With acids, beryllium salts are formed involving the Be(OH)＋ cation. With sulfuric acid, H2SO4: 2Be(OH)2＋H2SO4→[Be(OH)]2SO4＋ 2H2O Thus, the probable formula for beryllium hydroxide is Be(OH)OH. However, this has never been reported. Beryllium hydroxide dehydrates completely at 400°C to form a white powder of acid soluble beryllium oxide: Be(OH)2＋ heat → BeO＋H2O Further heating at higher temperature produces acid insoluble BeO.