科研之友
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摘要
Potentiometry has been employed to determine the activity coefficients of n-decyl sulfate and n-alkyl(C-5-C-10)sulfonate ions in aqueous solutions of their sodium salts containing NaCl or Na2SO4 as a background electrolyte. The selectivity factors have been estimated for ion-selective electrodes exhibiting responses to surfactant ions in the presence of inorganic salts. The pattern of the dependences of the activity coefficients of the surfactant anions on the length of their hydrocarbon radicals and the nature of functional groups has been revealed. The results obtained have been compared with the data on long-chain carboxylates.
- 出版日期2014-5
