
%0 Journal Article
%A Easteal, AJ 
%T Tracer diffusion coefficients of tritiated water and acetonitrile in water + acetonitrile mixtures
%J Australian Journal of Chemistry
%D 1980/08/01
%V 33
%N 8
%P 1667-1675
%K 
%R https://doi.org/10.1071/CH9801667
%U https://www.publish.csiro.au/paper/CH9801667 
%X Tracer diffusion coefficients of tritiated water (HTO) and 14C-labelled acetonitrile have been measured at 298.15 K by the diaphragm cell method, for the whole range of compositions of water+ acetonitrile binary mixtures. The composition variation of (a) the deviation of D from additivity and (b) the product D&#951;, for each component, has been evaluated. The variation of D&#951; is discussed in terms of the Naberukhin- Rogov structural model for solutions of non-electrolytes in water.     The diffusion data have been used to test a semiempirical relationship, between solution viscosity and self-diffusion coefficients, due to Albright. For the composition region of 5-55 mole % acetonitrile Albright's equation gives calculated viscosities which agree well with observed values. The calculation fails to reproduce the observed variation of viscosity for the composition region of 60-95 mole % acetonitrile. 
