[RASMB] sednterp values

[Judith Kornblatt]

I recently tried to compute viscosity values for solutions of MnSO4 and 
MgSO4, using SEDNTERP, version 1.09. The smaller the concentration of 
the salt, the greater the effect on the viscosity! For example, at 20 C, 
(all values are X E-2)
    MnSO4, 50 mM    visc = 1.0308
                   10 mM              .988
                      1 mM              .967
                    0.1 mM              .9603

    MgSO4, 50 mM   visc = 1.0315
                   10 mM             1.035
                     1 mM              1.0576
                      0.1 mM           1.0678
            
This makes no sense to me, so I assume there is a problem somewhere. Has 
anyone else seen this sort of behavior? Any explanation?  

Judith Kornblatt 
Concordia University
Montreal, Quebec