Comparison of emulsifying and deflocculating powers of soaps upon oil and carbon black

Summary

Comparisons were made of the emulsifying or deflocculating powers of soap solutions as measured by the proportions of (1) mineral oil, (2) oil-soluble color, (3) naked carbon black, and (4) oiled carbon black, carried through filter papers under standard conditions. The results indicate no close parallel between the emulsification of oil, the distribution of oil-soluble color, or the deflocculation of naked carbon black. The use of oiled carbon black as a test object for determining emulsifying power offers some promise provided an appropriate technic can be devised.