For a starting point I would suggest http://web.mit.edu/seawater/Seawater_Property_Tables.pdfhttp://web.mit.edu/seawater although this will not help much on the 'saturated' end of things since the salinity values in the tables do not reach the 20C saturation values. I leave finding the saturation value to the requester, since google brings it up quite easily.
Removed snarky comment that provides nothing specific to the answer or question.