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Ion-Pair Formation of Ammonium Fluoride inTetramethylUrea-WaterMixtures from Conductivity Measurements | ||
| journal of kerbala university | ||
| Article 1, Volume 1, Issue 0, 2005, Pages 273-278 PDF (0 K) | ||
| Authors | ||
| Hamieda Edan Salmanand; Shaker Mahmud Juad | ||
| Abstract | ||
| The equivalent conductivity (Λ) at different concentrations of NH4F solutions in tetramethyl urea (TMU-water) mixtures at 25C˚ has been determined from direct conductance measurements. The association constant (Ka) for ion-pair formation and the equivalent conductivity of the electrolyte at infinite dilution (Λە) in the different mixtures by a least square method with an appropriate computer programme using Shedlovsky method. Densities, viscosities and dielectric constants have been measured for all the solvent mixtures at 25C˚.Walden products (W) have been calculated for NH4F from the (Λ ە)and the viscosities (ηᵒ) of theTMU-water mixtures. | ||
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