Equation of state and electrical conductivity of water and ammonia shocked to the 100 GPa (1 Mbar) pressure range
Dynamic equation-of-state data for liquid H/sub 2/O and NH/sub 3/ were measured in the shock pressure range 30--230 GPa (0.3--2.3 Mbar) using a two-stage light-gas gun. Electrical conductivities of water were also measured in the shock pressure range 28--59 GPa (280--590 kbar). The experimental techniques to measure the electrical conductivity in a 50 ns time interval and to cool the target holders to liquid ammonia temperatures (230 K) are described. The H/sub 2/O data are discussed in terms of the statistical mechanics model of Ree. At temperatures above 3000 K significant molecular ionization occurs.