
TY  - JOUR
A1  - Easteal, AJ 
T1  - Tracer diffusion coefficients of tritiated water and acetonitrile in water + acetonitrile mixtures
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1980
VL  - 33
IS  - 8
SP  - 1667
EP  - 1675
KW  - 
UR  - https://doi.org/10.1071/CH9801667 
N2  - 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. 
ER  -

