INVESTIGATIONS INTO THE PHYSICOCHEMICAL BEHAVIOR OF COBALT(II)LAURATE

The infrared results suggest that cobalt(II) laurate is ionic in chara cter and the fatty acid exists as a dimer. The X-ray analysis reveals that the metal soap has a single layer structure. The absorption spect ra of the solutions of cobalt(II)laurate in a mixture of 80% benzene a nd 20% methanol (V/V) are characterised by absorption maxima near 360 and 540 nm. The plots of various physical properties (Viz. conductivit y, density and viscosity) versus soap concentration exhibit an interse ction of two straight lines at a definite soap concentration, called t he critical micelle concentration (CMC) of these soap solutions.