Heats of dilution of seawater have been determined in the range of 40‰ to 0.4‰ salinity from 0 to 30°C….
Millero, Frank J., Lee D. Hansen, and Edward V. Hoff. 1973. "The enthalpy of seawater from 0 to 30°C and from 0 to 40‰ salinity." Journal of Marine Research 31, (1). https://elischolar.library.yale.edu/journal_of_marine_research/1251