Temperature influence on solution properties of ethanol + n-alkane mixtures

This paper contains the results of a new experimental study of the effect of temperature on density, refractive index on mixing and ultrasonic velocity for a number of linear n-alkanes combined with ethanol. The experimentally derived functions were also compared with those predicted by different theoretical procedures. A qualitative analysis reveals that structure disruptions are predominant in ethanol + n-alkane mixtures. This effect is reinforced when the temperature or solute chain length rises. A perusal of deviations between the experimental and calculated derived magnitudes shows that the predictive procedures give a qualitative estimation for the studied mixtures due to their high nonideality. Disposable literature was compared and commented upon.