砷酸钾 | 14014-95-0

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 碱金属含氧阴离子化合物
• 中文名称: 砷酸钾
• 英文名称: Potassium;dideuteriooxyarsinate
• CAS: 14014-95-0
• 化学式: AsH₂O₄*K
• 分子量: 182.018
• InChiKey: GVPLVOGUVQAPNJ-ZSJDYOACSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -5.8
• 重原子数：
  6
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  80.6
• 氢给体数：
  2
• 氢受体数：
  4

制备方法与用途

用途： 用于农药、皮革防腐、试剂、光学材料及电子材料等领域。

反应信息

• 作为产物：
  描述：

  、 重水 、 potassium carbonate 以 重水 为溶剂， 生成 砷酸钾
  参考文献：
  名称：

  X-Ray Structural Study of Ferroelectric KH₂AsO₄and KD₂AsO₄

  摘要：

  In order to understand systematically the relationship between the crystal structure and phase transition in tetragonal KH2PO4 (KDP) family, the structures of KH2AsO4 (KDA) and KD2AsO4 (DKDA), which are the end members concerning the transition temperature T-c have been studied by X-ray diffraction at room temperature and at T-c + 5 K (110 K and 171 K. respectively). It was revealed that the hydrogen-bond distances R-OO for KDA and DKDA are longer than those for KDP and DKDP, respectively. These results smear the linear R-OO vs T-c relation found earlier in the tetragonal KDP family, contrary to our expectation. The temperature dependence of the bond lengths and angles in KDA and DKDA are compared with those in other members in the family and similarity and difference are discussed.

  DOI：

  10.1143/jpsj.70.2327

文献信息

• X-Ray Structural Study of Ferroelectric KH₂AsO₄and KD₂AsO₄
  作者：Mizuhiko Ichikawa、Daisuke Amasaki、Torbjörn Gustafsson、Ivar Olovsson

  DOI：10.1143/jpsj.70.2327

  日期：2001.8.15

  In order to understand systematically the relationship between the crystal structure and phase transition in tetragonal KH2PO4 (KDP) family, the structures of KH2AsO4 (KDA) and KD2AsO4 (DKDA), which are the end members concerning the transition temperature T-c have been studied by X-ray diffraction at room temperature and at T-c + 5 K (110 K and 171 K. respectively). It was revealed that the hydrogen-bond distances R-OO for KDA and DKDA are longer than those for KDP and DKDP, respectively. These results smear the linear R-OO vs T-c relation found earlier in the tetragonal KDP family, contrary to our expectation. The temperature dependence of the bond lengths and angles in KDA and DKDA are compared with those in other members in the family and similarity and difference are discussed.