The conductance of the solution of beryllium soaps has been measured at 30?C + 0.05?C in pure benzene with a view to determined the critical miceller concentration (CMC), molar conductance at infinite dilution. The results show that the specific conductance of the solutions of a soap increases whereas the molar conductance decreases with the increase in the soap concentration but increases with increasing chain length of the soap. The value of CMC decreases with the increase in the chain length of soap. The viscosity measurements confirm that the soap molecules does not aggregate appreciably below the CMC and the results has been interpreted in terms of Einstein, Vand, Moulik, and Jones-Dole equations. The values of molar volume are in agreement.