Tait equation of state
or in the integrated form
- is the Isothermal compressibility
- is the specific volume.
- and are functions of temperature that are independent of pressure.
It is quite common that this name is improperly used for the adiabatic form of the stiffened equation of state , which is the Cole equation of state . This perhaps stems for the classic text by Cole  calling this equation a "modified Tait equation" (p. 39).
- P. G. Tait "Report on some of the physical properties of fresh water and sea water", Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76. Physics and chemistry 2 pp. 1-76 (1888)
- Yuan-Hui Li "Equation of state of water and sea water", Journal of Geophysical Research 72 pp. 2665-2678 (1967)
- Richard Courant "Supersonic_flow_and_shock_waves_a_manual_on_the_mathematical_theory_of_non-linear_wave_motion", Courant Institute of Mathematical Sciences, New York University, New York (1944)
- Robert H Cole "Underwater explosions", Princeton University Press, Princeton (1948)