Hello!
Let me outline the situation - I make a phase diagram of the salt-polymer.
Binodal is obtained, nodes are obtained. All this is done at three different temperatures. And there is a problem - in the refractometric determination the polymer is detected in higher amount than it is actually present. And this only happens in an area where there is little polymer and a lot of salt. Thus, the nodes do not reach the binodal. And another thing - the higher the temperature of the diagram, the closer the nodes are to the binodal. In all three cases, the polymer is determined at 25 degrees.
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