Abstract
A volumetric determination of cationics and nonionics in mixtures was established with sodium tetraphenylborate as a titrant using Methyl Orange and Congo Red as indicators. For the determination of cationics, this method could be applied to a mixture of one mole of cationics and two moles of nonionics with an error of ±1%. For the determination of nonionics, this method could be applied to a mixture of one mole of nonionics and forty moles of cationics with an error of ±5%.
