Densities of pure liquid cannot always be averaged to yield the density of a mixture.
The pure liquid goes in and the impure dialysate comes out.
The rule is often used to compare a pure liquid and a solution at a given concentration.
The same thing holds for a pure liquid.
Frequently, the fugacity of the pure liquid is used as a reference state when using activity coefficients.
He reveled in the clean feel of the pure liquid on his tongue and palate.
Surface tension of a pure liquid is due to the bulk cohesion between the molecules, averaged over all likely positions.
It is a clear colourless liquid when pure, but it becomes yellow coloured upon prolonged standing.
Heat is added in the process of distillation which extracts a pure liquid.
Daily experience shows that soap bubble formation is not feasible with water or with any pure liquid.