Abstract
Viscosities for aqueous NH4Cl and tracer diffusion coefficients for22Na+,36Cl−, HTO, and CH3OH, acetone and dimethylformamide (all14C-labelled) in NH4Cl supporting electrolyte are reported for 25°, together with tracer diffusion coefficients for22Na+,36Cl−, and14CH3OH in 1M KI, and for14CH3OH in 1M MgCl2. The diffusion coefficient of HTO in NH4Cl solutions is slightly larger, for most of the concentration range investigated (0.05 to 4.5 M), than the value for pure water and is almost unaffected by the supporting electrolyte up to about 4M. Similar behavior is shown by CH3OH, acetone and dimethylformamide in NH4Cl solutions. Onsager limiting law behavior is approached by Cl− at NH4Cl concentrations in the 0.05–0.1M region but at much lower concentrations by Na+.
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Easteal, A.J., Woolf, L.A. Viscosity of aqueous NH4Cl and tracer diffusion coefficients of ions, water and non-electrolytes in aqueous NH4Cl, KI, and MgCl2 at 25°C. J Solution Chem 17, 447–457 (1988). https://doi.org/10.1007/BF00647312
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DOI: https://doi.org/10.1007/BF00647312