Figure 1: The electrical conductivity of water and SU plotted as a function of pressure and density.

(a) The water data of Haman and Linton29 and Mitchell and Nellis9 and the SU data of Nellis et al.4 are single-shock data, whereas the water data of Chau et al.8 are from multiple-shock data. Also shown for comparison purposes are the single-shock data for methane10 and ammonia9. The dashed line is a guide for the eyes. (b) the electrical conductivity of water and SU plotted as a function of density.