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FORTRAN programs are presented to calculate therraodynamic properties and viscosity of pure H-0, including coexisting water and steam, solubilities of solid SiO phases as functions of temperature and pressure, and equilibrium temperatures as functions of aqueous-silica concentrations. The thermodynamic relations are from Keenan et al. (1978); dynamic-viscosity equations are from Watson _et^jil_. (1980). Reynolds (1979) provides a root-solving procedure for the equation of state of water such that any two properties among temperature, density, pressure, enthalpy or entropy can be entered as known parameters. Equations for the solubility of quartz, amorphous silica, chalcedony, a-cristobalite and 3-cristobalite in dilute water are calculated following Fournier (1981), Fournier and Potter (1982a, b) and Fournier (1984). In addition, kinetic precipitation-rate constants are calculated using equations of Rimstidt and Barnes (1980). Water properties are expressed in units of meters, kilograms and seconds, and temperature in degrees Celsius. Concentration units are racial, molar and parts per million of SiO and kilograms of H SiO per cubic meter of water.

Fortran programs for properties of water and steam, and solubilities of solid silica phases