| Popis: |
High-precision viscosity measurements at 25°C of aqueous solutions of the alkali chlorides—LiCl, NaCl, KCl, RbCl, CsCl—have yielded new sets of Jones-Dole coefficients for A (0.0063, 0.0062, 0.0057, 0.0046, and 0.0062, respectively) and B (+0.1400, +0.0802, −0.0147, −0.0360, and −0.0511, respectively) based on the standard equation ηr = ηηo = 1 + AC12 + B · C. With the apparent exception of LiCl, systematic deviations from the Jones-Dole “limiting law” behavior have been observed for all the salts investigated. It appears that the anomalies are introduced by some spurious effect, most likely caused by structurally modified layers of solution, with different viscosities, at the glass (viscometer)/solution interface. |
