Dielectric Constant of Water Discovered to be Simple Function of Density over Extreme Ranges from – 35 to + 600oC and to 1200 MPa (12000 Atm.), Believed Universal

The experimental static dielectric constants (e) of water formulated by Fernandez, et al., (1997-International Association for the Properties of Water and Steam, IAPWS), –35 to 600 o C; 0.1 to 1200 MPa, are discovered to be closely described throughout by a simple equation of density (ρ), presented here, and agreeing with their reported calculated (extrapolated) values to 923 o C. Eight limiting boundary conditions are observed. Values of e follow isothermal straight-line slopes of log (e – 1) vs log ρ down to densities of 0.25 g cm -3 water, even in dioxane-water solutions. At lower densities, all slopes curve asymptotically in approaching unity, while becoming unity throughout at –35 o C (near metastable freezing point). Slopes above 0.25 g cm -3 asymptotically approach 1 2/3 at high temperatures that numerically proportionates (e – 1) to volume times surface densities, with a proposed explanation given. Values for e of water dissolved in dioxane down to 0.006 g cm -3 water (25-300 o C) and in benzene to 0.014 g cm -3 water (300-400 o C) extend uninterrupted from those for pure water. The Deul-Franck (1984, 1991) values of e for benzene (25-400 o C; to