トリクロロガリウム 化学特性,用途語,生産方法
外観
白色の結晶
溶解性
水に可溶。有機溶媒にも可溶。水に溶ける。
解説
塩化ガリウム(Ⅲ)：GaCl3(176.08)．三塩化ガリウムともいう．ガリウムと過剰塩素との反応で得られる．無色の針状結晶．融点77.9 ℃，沸点201.3 ℃．揮発性化合物で気体でも270 ℃ までは二量体として存在する．GaCl3は同族のAlCl3に類似し，有機溶媒によく溶ける．水に溶けて，ガリウム(Ⅲ)酸イオン [GaO3]3－ を生じる．フリーデル-クラフツ反応の触媒，電子材料の製造などに用いられる．
用途
高純度金属化合物。
使用上の注意
純度は金属ベースで差数法によって算出したもので、重量又は容量分析等の化学的方法によるものではありません。使用目的により、正確な含量が必要な場合は、それらの方法によって測定する必要があります。不活性ガス封入
化学的特性
white crystals or powder
使用
Gallium(III) chloride is a catalyst for a number of transformations including the ring opening and recyclization of epoxides and the trimerization of alkynes. It is used to detect the solar neutrions.
調製方法
The trichloride salt of trivalent gallium is prepared by the
action of either hydrogen chloride or chlorine on the metal.
一般的な説明
Colorless needles. Used as a raw material in the production of metallic gallium and in the processing of mono crystal semiconductor compounds.
空気と水の反応
Water soluble.
反応プロフィール
GALLIUM(III) CHLORIDE acts as a weak inorganic acid. Materials in this group are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.
健康ハザード
(Non-Specific -- Gallium Compounds) In view of the toxicity of gallium and its compounds, as shown by experiments, all persons involved in work with these substances should undergo periodic medical examinations, during which special attention should be paid to the condition of the liver, respiratory organs, and skin.
火災危険
Emits toxic chloride fumes when heated to decomposition. Decomposes upon sufficient heating.
職業ばく露
Used as a raw material in the produc tion of metallic gallium; and in the processing of mono crystal, semiconductor compounds.
輸送方法
UN3260 Corrosive solid, acidic, inorganic, n.o.s.,
Hazard class: 8; Labels: 8-Corrosive material, Technical
Name Required. UN1759 Corrosive solids, n.o.s., Hazard
class: 8; Labels: 8-Corrosive material, Technical Name
required.
純化方法
The pure compound can be obtained by redistillation in a stream of Cl2 or Cl2/N2 followed by vacuum sublimation or zone refining. It forms colourless needles which give gallium dichloride [Ga(GaCl4), m 172.4o] on heating. It dissolves in H2O with liberation of heat. It is soluble in Et2O and can be extracted from an HCl solution with Et2O. [Laubengayer & Schirmer J Am Chem Soc 62 1579 1940, D.nges in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 846 1963.]
トリクロロガリウム 上流と下流の製品情報
原材料
準備製品