Acta Phys. -Chim. Sin. ›› 1995, Vol. 11 ›› Issue (04): 369-374.doi: 10.3866/PKU.WHXB19950417

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Standard Transfer Free Energies of KBPh4 from Water to Straight Chain Monohydric Alcohols

Zou Li-Zhuang,Wang Xiao-Ling,Xu Gui-Duan,Qu Song-Sheng   

  1. Department of Chemistry,Yantai Teachers College,Yantai 264025|Department of Chemistry,Wuhan University,Wuhan 430072
  • Received:1994-01-24 Revised:1994-07-18 Published:1995-04-15
  • Contact: Zou Li-Zhuang

Abstract:

Solubilities (S) of KBPh4 in water, methanol, ethanol, 1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 1-octanol at 288.15, 298.15, 308.15, 318.15, 328.15K have been determined by the spectrophotometry. These data can be expressed by 1gS=-(1.4184-0.8725lgn)/(1-132.45T-1), where n are the atomic number of carbon for the straight chains monohydric alcohols; T is the temperature. The standard transfer free energies (△tG) of KBPh4 from water to straight chains monohydric alcohols in the temperature ranges of 288.15-328.15K have been calculated. The results can be expressed as △tG=-18.029+5.766×10-5T2+(6.817×10-2-5.302×10-10T3)-1lgn.

Key words: Potassium tetraphenylborate, Solubility, Transfer free energy