Jz. Yang et al., Thermodynamics of ionic association 1 - The standard association constant of the ion pair Li+B(OH)(4)(-), THERMOC ACT, 352, 2000, pp. 69-74
Values of cmf for the cell without liquid junction Pt, H-2 (101.325 kPa) \
Li2B4O7 (m(1)), LiCl (m(2))\ AgCl-Ag are reported at five temperatures from
278.15 to 318.15 K. The standard association constant of ionic pair Li+B(O
H)(4)(-), K-a, is determined by a fitting with the cell results. The depend
ence of pK(a) on temperature Tis expressed in empirical equation. pK(a)=-13
1.6K/T-0.08996-1.856x10(-3)T/K. The other thermodynamic quantities of the a
ssociation process are calculated and show that there truly exists ion pair
Li+B(OH)(4)(-) and the driving force for the ion association reaction is a
ssociation entropy. (C) 2000 Elsevier Science B.V. All rights reserved.