アルミニウム粒と四塩化炭素との反応のメルカプタン類添加による阻害作用ならびに溶媒効果

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  • Retarding Action of Various Mercaptanes on the Reaction between Aluminum Particles and Carbon Tetrachloride, and Solvent Effects for this reaction
  • アルミニウムリュウ ト 4エンカ タンソ ト ノ ハンノウ ノ メルカプタンルイ テンカ ニ ヨル ソガイ サヨウ ナラビニ ヨウバイ コウカ

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Retarding action of many sorts of inhibitors on the reaction between aluminum particles and carbon tetrachloride was reported in the previous many papers. Now, analogous studies with mercaptanes as inhibitor are carried out and further more solvent effects of ligroins are checked. The outline of results may be summarized in the following: (1) N-alkyl-, sec-(iso-)alkyl mercaptanes prolonged the induction period, but tert-alkyl mercaptanes did not affect that period irrespective their carbon number. (2) ln the mercaptanes having lower alkyl, the order of the prolonged effect is shown as follows: n-<sec-(iso)<tert-. (3) It is recognized that aromatic mercaptanes are more valid for prolonging the induction period than aliphatic mercaptanes. (4) Since mercaptanes is weaker agents for coordinating with produced AlCl_3 and less reactive for aluminum particles than corresponding alcohols, the former is inferior to the latter for prolonging the induction period. (5) ln the case of pretreatment of aluminum particles, benzyl mercaptane is inferior to tert-butyl, but regarding to washing effect, if any benzyl mercaptane is sorped (chemical sorpticn) on the surface of aluminum particles, this film is very powerful. (6) In solvent effect, the induction period is shortened with a narrow range having the small quantity, but is prolonged with the quantity beyond that range.

アルミニウム粒と四塩化炭素の反応について，各種の阻害剤の添加効果の研究に対しては従来浅岡らが多数の報告を行って来ている。本報ではこれらに関連して，メルカプタン類添加の場合と，溶媒としてリグロインを添加した場合の誘導期におよぼす影響について行ったものである。

identifier:富山大学工学部紀要，15(1/2)

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