Individual extraction constants of some univalent cations in the two-phase water鈥損henyltrifluoromethyl sulfone system

详细信息

下载全文

推荐本文 |

• 作者：E. Makrl铆k (1) makrlik@centrum.cz
  P. Va艌ura (2)
  P. Seluck媒 (3)
• 关键词：Univalent cations – ; Extraction constants – ; Water– ; phenyltrifluoromethyl sulfone system
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版时间：April 2011
• 出版年：2011
• 期刊代码：48_02365731
• 类别：ch
• 卷：288
• 期：1
• 页码：177-180
• 数据来源：sp

摘要

From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium M+(aq) + Cs+(org) ⟺ M+(org) + Cs+(aq) taking place in the two-phase water–phenyltrifluoromethyl sulfone (abbrev. FS 13) system (M+ = Li+, H₃O+, Na+, NH₄+ \hbox{NH}_{4}{}^{+} , Ag+, Tl+, K+, Rb+; aq = aqueous phase, org = FS 13 phase) were evaluated. Furthermore, the individual extraction constants of the M+ cations in the mentioned two-phase system were calculated; they were found to increase in the series of Li+ < H₃O+ < Na+< NH₄ + \hbox{NH}_{4}{}^{ + } < Ag+ < Tl+ < K+ < Rb+ < Cs+.