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ベリリウムジヒドロキシド

ベリリウムジヒドロキシド 化学構造式
13327-32-7
CAS番号.
13327-32-7
化学名:
ベリリウムジヒドロキシド
别名:
ベリリウムジヒドロキシド;ジヒドロキシベリリウム;水酸化ベリリウム
英語化学名:
BERYLLIUM HYDROXIDE
英語别名:
Be(OH)2;Chebi:35102;berylliumhydrate;Dihydroxyberyllium;BERYLLIUM HYDROXIDE;berylliumdihydroxide;Beryllium dihydoxide;Beryllium(ii) hydroxide;Beryllium(2+) hydroxide;berylliumhydroxide(be(oh)2)
CBNumber:
CB9449796
化学式:
BeH2O2
分子量:
43.03
MOL File:
13327-32-7.mol

ベリリウムジヒドロキシド 物理性質

融点 :
105 °C (decomp)
比重(密度) :
1.92
外見 :
amorphous powder or crystals
色:
Colorless, orthorhombic, amorphous powder orcrystals
水溶解度 :
very slightly soluble H2O, dilute alkali; soluble hot NaOH, acids [MER06]
EPAの化学物質情報:
Beryllium hydroxide (Be(OH)2) (13327-32-7)

安全性情報

RIDADR  1566
国連危険物分類  6.1(a)
容器等級  II
有毒物質データの 13327-32-7(Hazardous Substances Data)
毒性 LDLo ivn-rat: 3821 mg/kg XEURAQ UR-70,1949

ベリリウムジヒドロキシド 価格

メーカー 製品番号 製品説明 CAS番号 包装 価格 更新時間 購入

ベリリウムジヒドロキシド 化学特性,用途語,生産方法

化学的特性

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

物理的性質

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)42-).

使用

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.

使用

manufacture of beryllium and beryllium oxide.

定義

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.

製造方法

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.

危険性

Very toxic.

安全性プロファイル

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

ベリリウムジヒドロキシド 上流と下流の製品情報

原材料

準備製品


ベリリウムジヒドロキシド 生産企業

Global( 13)Suppliers
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13327-32-7(ベリリウムジヒドロキシド)キーワード:


  • 13327-32-7
  • berylliumhydrate
  • berylliumhydroxide(be(oh)2)
  • BERYLLIUM HYDROXIDE
  • Beryllium dihydoxide
  • Dihydroxyberyllium
  • Beryllium(2+) hydroxide
  • Beryllium(ii) hydroxide
  • Chebi:35102
  • Be(OH)2
  • Beryllium hydroxide (Be(OH)2)
  • berylliumdihydroxide
  • BERYLLIUM HYDROXIDE ISO 9001:2015 REACH
  • ベリリウムジヒドロキシド
  • ジヒドロキシベリリウム
  • 水酸化ベリリウム
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