Consider a container that contains a mixture of many liquids. Can two of these liquids phase separate without having any significant effect on other liquids inside the container? Is there a feasible scenario where the above can actually happen? I am interested in a scenario where the two liquids only separates themselves from each other and not the rest of the mixture.
More precisely: Assume the container contains a mixture of liquids A and B with many other liquids (state 1). Can these two liquids separate (triggered by change in the pressure, temperature, ...) so that at the end (state 2) the liquids in the container are divided into two regions with the following properties:
The first region does not contain liquid B. It contains liquid A with the exact same mixture of the other liquid (same as state 1).
The second region does not contain liquid A. It contains liquid B with the same mixture of other liquids (same as state 1).
Indeed we want other liquids in the container to be neutral to the phase separation of the liquids A and B.