수산화베릴륨

수산화베릴륨 C화학적 특성, 용도, 생산

화학적 성질

White powder. Decomposes to the oxide at 138C. Soluble in acids and alkalies; insoluble in water.

물리적 성질

Beryllium Hydroxide can be prepared by reacting the oxide with water:
BeO＋H2O→Be(OH)2
If heated, it decomposes at 1273°C. Its solubility in water is slight and its solubility product Ksp(H2O) is 6.92×10^-22. It is soluble in acids and bases.
Beryllium hydroxide exists in three forms: as a metastable tetragonal crystalline solid (a-Be(OH)2; as a stable orthorhombic crystalline solid (b-Be(OH)2); and in a slightly basic pH, it appears as a slimy, gelatinous substance (Be(OH)4^2-).

용도

Beryllium 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.

정의

beryllium hydroxide: A whitecrystalline compound, Be(OH)₂, precipitatedfrom solutions of berylliumsalts by adding alkali. Like the oxide,it is amphoteric and dissolves in excessalkali to give beryllates.

제조 방법

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.

위험도

Very toxic.

Safety Profile

Confirmed carcinogen withexperimental carcinogenic and tumorigenic data. Poisonby intravenous route. When heated to decomposition it emitsvery toxic fumes of BeO.

수산화베릴륨 준비 용품 및 원자재

원자재

준비 용품

수산화베릴륨 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28180	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22968	58
Chongqing Chemdad Co., Ltd	+86-023-61398051 +8613650506873	sales@chemdad.com	China	39916	58
Shaanxi Didu New Materials Co. Ltd	+86-89586680 +86-13289823923	1026@dideu.com	China	9309	58
Mainchem Co., Ltd.	+86-0592-6210733	sale@mainchem.com	China	32360	55
Changsha Jing Kang New Material Technology Co., Ltd.	0731-85118349 18874718518	ma_haihong@sina.com	China	1597	50
Shaanxi Dideu Newmaterial Co., Ltd.	029-63373950 15353716720	1052@dideu.com	China	10009	58

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