ammonium tetrafluorooxoniobate | 67165-43-9

• 英文名称: ammonium tetrafluorooxoniobate
• 英文别名: ammonium oxotetrafluoronibate
• CAS: 67165-43-9
• 化学式: F₄NbO*H₄N
• 分子量: 202.938
• InChiKey: ZKBOSTLHGBUUGQ-UHFFFAOYSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  1.94
• 重原子数：
  7.0
• 可旋转键数：
  0.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  53.57
• 氢给体数：
  1.0
• 氢受体数：
  1.0

反应信息

• 作为产物：
  描述：

  ammonium hydroxide 、 氢氟酸 在 niobium hydroxide 作用下， 以 水 为溶剂， 生成 ammonium tetrafluorooxoniobate
  参考文献：
  名称：

  Niobium, tantalum, and titanium fluoride solutions

  摘要：

  Parameters for the preparation of concentrated tantalum, niobium, and titanium fluoride solutions by dissolution of their oxides or hydroxides in hydrofluoric acid were studied. Anatase titania, niobium oxide, and tantalum oxide calcined to 900A degrees C were found to have high dissolution rates. Solid phases separated upon the dissolution of niobium, tantalum, and titanium oxides in hydrofluoric acid were identified as NbO2F, TaO2F, Ta3O7F, and TiOF2. Niobium hydroxide dissolution in an autoclave at the atmospheric pressure gave various complex salts: NH4NbOF4 and (NH4)(3)Nb2OF11.

  DOI：

  10.1134/s0036023609040032

文献信息

• Isolation of niobium, tantalum, and titanium complex fluoride salts with alkali metal cations
  作者：A. I. Nikolaev、N. V. Kirichenko、M. P. Rys’kina

  DOI：10.1134/s0036023609070134

  日期：2009.7

  Fluoride and oxofluoride salts of niobium, tantalum, and titanium were isolated. They precipitated from aqueous solutions and upon washing of organic extracts with aqueous solutions of ammonium, potassium, and sodium salts. The compositions of the isolated compounds were studied. Different compositions were established for the niobium salts that precipitated upon the dissolution of unwashed niobium hydroxide in hydrofluoric acid under the atmospheric pressure, in an autoclave, and upon addition of sodium, potassium, and ammonium salts to purely fluoride solutions of niobium, as well as for the tantalum ammonium and sodium salts isolated from aqueous and organic solutions. The data obtained can be used for the synthesis of niobium, tantalum, and titanium complex fluoride salts with various compositions.
• Rakov, E. G.; Melkumyants, M. V.; Ivanov, S. V., Inorganic Materials, 1992, vol. 28, p. 433 - 436
  作者：Rakov, E. G.、Melkumyants, M. V.、Ivanov, S. V.

  DOI：——

  日期：——
• Agulyanskii, A. I.; Balabanov, Yu. I.; Bessonova, V. A., Inorganic Materials, 1985, vol. 21, p. 84 - 86
  作者：Agulyanskii, A. I.、Balabanov, Yu. I.、Bessonova, V. A.、Babkin, A. G.、Stangrit, P. T.

  DOI：——

  日期：——