41 



values of Ai/ Ap versus P has a slope whose absolute value is one half the value 

 of the other two plots , Hamann and Strauss mention that their results also differ 

 (by several percent at 10, 000 atm) from those of Zisman,(25) and they attribute 

 this discrepancy to contamination of Zisman's solutions by direct contact with his 

 kerosene pressure fluid. 



The conductance of KCl first increases with increasing pressure, goes 

 through a maximum at about 30, 000 lb/in. 2, and then decreases (see Figure 21) . 

 Solutions of other strong salts show similar behavior .(25) Hamann attributes the 

 initial increase to the increase in the number of ions per unit volume as the solu- 

 tion is compressed, and the subsequent decline to decreasing ionic mobility with 

 increasing viscosity of the solvent, '■'^2, 23) -^g shall see subsequently that this 

 explanation is probably an oversimplification. 



artbur B.ltttkJnf. 



S-700 1-0307 



