けい化カルシウム

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Danger

• 危険有害性情報

  H261：水に触れると可燃性/引火性ガスを発生

• 注意書き

  P223：激しい反応と火災の発生の危険があるため、水と接 触させないこと。

  P231+P232：湿気を遮断し、不活性ガス下で取り扱うこと。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P370+P378：火災の場合：消火に．．．を使用すること。

  P501：内容物/容器を．．．に廃棄すること。

けい化カルシウム 価格

けい化カルシウム 化学特性,用途語,生産方法

• 説明

  Calcium silicide has the molecular formula of Ca₂Si and the molecular weight of 96.2514 g/mol. This salt can be formed by the reaction of Ca metal, mixed with Si, at 850°C in an inert atmosphere.

• 化学的特性

  METAL PIECES

• 物理的性質

  Calcium silicide, also called calcium disilicide, is an inorganic compound, a silicide of calcium. It is a whitish or dark gray to black solid matter with melting point between 700 and 935°C. It is insoluble in water, but may decompose when subjected to moisture, evolving hydrogen and producing calcium hydroxide. It decomposes in hot water. It is flammable and may ignite in air by producing silane that spontaneously ignites.

• 使用

  The uses of calcium silicide are many. Some of these include:
  ? Calcium silicide is used for manufacture of special metal alloys, e.g. for removing phosphorus and as a deoxidizer.
  ? In pyrotechnics, it is used as fuel to make special mixtures, e.g. for production of smokes, in flash compositions, and in percussion caps.
  ? Calcium silicide is used in the manufacture of certain initiatory, pyrotechnic and smoke compositions.
  ? The silicon and calcium alloy is mainly used as desulfurizing agent and deoxidizer for steel industry and casting industry.
  ? Calcium silicide has been found to be extremely corrosive to all metals including the refractory metals. It has been successfully contained in boron nitride for 36 h.
  ? The formation of calcium silicide (CaSi₂) intermetallic through the simultaneous reduction of calcium oxide from the electrolyte and of the silica pellet and reduction of dissolved carbon dioxide. C

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