ヘキサメチルジシラン

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

  H225：引火性の高い液体および蒸気

  H317：アレルギー性皮膚反応を起こすおそれ

  H319：強い眼刺激

  H335：呼吸器への刺激のおそれ

• 注意書き

  P210：熱/火花/裸火/高温のもののような着火源から遠ざ けること。－禁煙。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P302+P352：皮膚に付着した場合：多量の水と石鹸で洗うこと。

  P305+P351+P338：眼に入った場合：水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。

ヘキサメチルジシラン 価格

MSDS Information

• Hexamethyldisilane

ヘキサメチルジシラン 化学特性,用途語,生産方法

• 外観

  白色/無色～うすい黄色粉末～塊～透明液体

• 解説

  ヘキサメチルジシラン，無色の液体．融点12.2 ℃，沸点113 ℃．d²⁰₄0.7268．n²⁰_D1.4229．過酸やハロゲンによりSi-Si結合は容易に開裂し，それぞれヘキサメチルジシロキサン，ハロゲノトリメチルシランを与える．シラン誘導体の製造原料に用いられる．

  森北出版「化学辞典（第2版）
  

• 製造

  ヘキサメチルジシラン，クロロトリメチルシランとリチウムあるいはナトリウムとを反応させると得られる．

• 化学的特性

  Colorless clear liquid

• 使用

  Hexamethyldisilane acts as a silylating reagent for allylic acetates, aryl halides and diketones. It is a source material for vapor deposition during silicon carbide growth. It is also used in electronic and semiconducter industries.

• 主な応用

  Hexamethyldisilane is an important silane protective agent, which can synthesize sodium trimethylsilane, potassium trimethylsilane and lithium trimethylsilane.
  Preparation of iodotrimethylsilane.
  Used as trimethylsilane anion reagent.
  silylating or reducing reagent in combination with a Pd catalyst or a nucleophile.
  Replaces aromatic nitriles with TMS groups in presence of [RhCl(cod)]2.
  Precursor for CVD of silicon carbide.
  Brings about the homocoupling of arenesulfonyl chlorides in the presence of Pd2(dba)3.
  Used as a solvent for the direct borylation of fluoroaromatics.
  Reacts with alkynes to form siloles.
  Undergoes the silylation of acid chlorides to give acylsilanes.

• 製造方法

  Hexamethyldisilane is produced by the reaction of methyl Grignard reagent with methylchlorodisilanes. This reaction is normally conducted in the presence of an ether such as diethyl ether, ethyl propyl ether, THF and the like.

• 火災危険

  Hexamethyldisilazane (HMDZ) is a highly flammable liquid and vapour.
  HMDZ liquid is lighter than water and may float on water, spreading material during fire fighting. Leaking material or fire runoff to sewer may create fire or explosion hazard.
  HMDZ vapours are heavier than air and can accumulate to form explosive concentrations. The vapours may also spread a considerable distance to a source of ignition, and flash back towards the source.
  HMDZ reacts with water to form ammonia.
  HMDZ is a non-conductor and, therefore, can accumulate static electrical charges when processed, handled or dispensed. HMDZ's flash point is 52 to 53°F, closed cup, for "pure" material.

• 純化方法

  The most likely impurity is trimethylchlorosilane (cf boiling point). Wash it with H2O, cold conc H2SO4, H2O again, then aqueous NaHCO3, dry over CaSO4 and fractionate at atmospheric pressure. [Brown & Fowles J Chem Soc 2811 1958.] A grossly impure sample (25% impurities) was purified by repeated spinning band distillation. This lowered the impurity level to 500ppm. The main impurity was identified as 1-hydroxypentamethyldisilane. [Beilstein 4 IV 4277.]

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ヘキサメチルジシラン スペクトルデータ(¹HNMR、¹³CNMR、IR1、MS、Raman)

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