Acid-base equilibria of sulfonephthalein indicators in micellar solutions of cationic dimeric surfactant

  • E. V. Pushkarevskaya V.N. Karazin Kharkiv National University
  • S. V. Shehovcov V.N. Karazin Kharkiv National University
  • Natalya A. Vodolazkaya V.N. Karazin Kharkiv National University
Keywords: acid-base equilibria, sulfonephthalein indicator, micelle of dimeric surfactant, apparent ionization constant, differentiating impact, electrostatic potential

Abstract

The acid-base equilibria of sulfonephthalein indicators in micellar solutions of dimeric bis-quaternary ammonium surfactant (16-4-16) have been investigated. A differentiating impact of dimeric surfactant micelles toward acidic ionization of sulfonephthalein indicators has been found. This effect is more expressed than in usual cationic surfactant micelles. The electrostatic potential value in dimeric surfactant micelles was estimated to be about 120 mV.

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References

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Published
2013-12-20
Cited
How to Cite
Pushkarevskaya, E. V., Shehovcov, S. V., & Vodolazkaya, N. A. (2013). Acid-base equilibria of sulfonephthalein indicators in micellar solutions of cationic dimeric surfactant. Kharkiv University Bulletin. Chemical Series, (22), 99-105. https://doi.org/10.26565/2220-637X-2013-22-11