Electrolytic conductance and viscosity of some mixed nitrate-water systems from fused salts to dilute solutions

✍ Scribed by Maurice Abraham; Marie-Christine Abraham

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 730 KB
• Volume: 31
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(86)85013-7

✦ Synopsis

Measurements of molar volume V, viscosity n and speciftc conductance x on some mixed nitrate-water systems were made over the whole concentration range. For 0 < x, -z 1, the equivalent conductance A and the fluidity 4 of solutions obey: A = (A,)=-(A;)x, + (A, -A',)" (A, -A;)% 4 = (t:)"-(4: )"' + k&v -KY-(4. -&)"~ where I: equivalent conductance 4: fluidity r: mole fraction superscript ': apparent parameter subscripts s, w, co: respectively salt, water and salt at infinite dilution. The apparent parameters and A, are empirical. For -0.4 < x. c 1, these relations are reduced to: A = &)"-(A,)"~ 4 = ($'L.)"-(#J.)"#. Then, each equation has only one empirical parameter. For 0 -z x, -z 1, the product nx obeys: tlx = rl. X= x.

accurately for -0.2 < x, < 1 and with a satisfactory good order of magnitude for 0 -G X, < -0.2. The Walden product nA as x, is linear for -0.3 < X. c 1 and exhibits a weak minimum at about x. = 0.2, as consequences of the two first equations and numerical values of their parameters.

These results are consistent with the assumption of analogous activation-controlled processes for both electrical conductance and viscous flow.