The audio frequency conductances of magnesium, manganese II, and barium malonates in aqueous medium at 25 °C

Abstract

The conductance of aqueous solutions of magnesium, manganese II, and barium malonates has been measured at 1.59 kHz, using a conventional audio frequency bridge. Conductance data were evaluated using different modern theoretical conductance equations, each a three-parameter equation in KA, Λ0, and a. These are the complete and expanded forms of both the Fuoss–Hsia (F/H) and Pitts (P) equations and the Lee–Wheaton (L/W) equation. Our results show that the Lee–Wheaton equation is the most satisfactory. Keywords: conductance, aqueous medium, magnesium malonate, manganese malonate, barium malonate.

The Audio Frequency Conductance Study of Some Metal Succinate Salts in Aqueous Medium at Different Temperatures (Part I: Magnesium, Manganese (II), Barium and Copper Succinates)

“…In this work, with the exception of copper succinate, however, the experimental conductances give no evidence of this. e same conclusion was found for other systems by other authors [9,[18][19][20][21][22][23][24].…”

“…On the above views, it can be generally predicated, for all studied salts, that the degree of dissociation is highly changed from one to another. e succinate ion possesses the donor property to a less degree than both oxalate and malonate ions [20,21], so it can also be emphasized that succinate salts are more highly dissociated than the oxalates [22] and malonates [23,24].…”

“…Also, it is well established that the extent of association of a series of electrolytes in di�erent solvents is speci�c for any ion-solvent combination, rather than being dielectric constant dependent. Information on ion-ion and ion-solvent and interactions can be obtained from conductivity measurement [1][2][3][4]. In a series of conductance studies, there have been numerous investigations of association behavior of 1 : 1 electrolytes in aqueous and binary mixed solvents.…”