ヨウ化ニオブ（IV）

ヨウ化ニオブ（IV） 化学特性,用途語,生産方法

• 合成

  A tube, dried by fanning with a flame and prepared for evacuation and melt-sealing, is charged with a small amount of Nbl5 under completely anhydrous conditions. The tube is then sealed in a high vacuum and the end containing Nbl5 is heated to 270°Cwhile the reactor is in a horizontal position. The liberated iodine collects at the other end, which is kept at a temperature of about 35°C (p[I₂] = 0.8 mm.). The reaction time is about 48 hours. A residue of Nbl4 remains on the spot where the starting Nbl₅ was placed; it can be sublimed at about 300 °C under the above-indicated I₂ pressure.
  Nbl₅= Nbl₄ + ¹/₂ I₂.
  

ヨウ化ニオブ（IV） 生産企業

Global(1)Suppliers