Five two-component mixts. of surfactants contg. one nonionic component (2-ethylhexyl alcohol polyalkoxylate) and the other ionic component (sulfosuccinate derivatives of polyoxyalkylates of 2-ethylhexyl alcohol) were studied in aq. solns. for their washing power. The results were compared with those of 2 com. surfactants. The studied mixts. of surfactants showed higher washing power in comparison to com. ones.