Micellization in aqueous solutions of monoalkyl phosphate salts

Jun Arakawa, Brian A. Pethica

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


The micellization of the mono-salts of octyl, decyl, and dodecyl phosphates and of the di-salts of dodecyl phosphate have been studied in aqueous solutions by conductivity methods. The effects of temperature, salt concentration, counterion type, and chain length have been examined. The mono-salts of the alkyl phosphates show properties similar to those of fatty acid soaps and alkyl sulfates. The di-salts show rather different counterion and temperature effects. The solubility diagrams for the mono-salts are anomalous and are explained in terms of the preferred precipitation of stable solid salts of the composition RPO4H2-RPO4HM where M is an alkali metal.

Original languageEnglish (US)
Pages (from-to)441-450
Number of pages10
JournalJournal of Colloid And Interface Science
Issue number2
StatePublished - Jun 1980
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry


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