V. B. Parker, "Thermal Properties of Aqueous Uni-Univalent Electrolytes", NSRDS-NBS 2, US Gov. Printing Office: Washington, DC 1965
note HFc
Values for HF not given directly by Parker 1965 were interpolated by fitting a polynomial and expressed as differences to the closest value given by Parker 1965. Ditto for Johnson 1973.