PH effect on properties of surfactant-free oil-in-water emulsion prepared with oleic acid

Yuta Akizuki, Mikio Yoshida, Naoyuki Ishida, Toshiyuki Oshiki, Jun Oshitani

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Abstract

Size distribution, potential, and yield of surfactant-free oil-in-water (O/W) emulsion prepared with oleic acid were measured at various pHs after seven days from the emulsification. We found that the size distribution is almost the same regardless of pH from 9 to 3. The magnitude of potential and yield remains constant at pH from 9 to 6, and decreases at pH from 6 to 3. There is a correlation between the potential and the yield, but no correlation between the potential and the size, suggesting that the potential relates to stability of oleic acid droplets in water rather than their size.

Original languageEnglish
Pages (from-to)604-606
Number of pages3
JournalChemistry Letters
Volume43
Issue number5
DOIs
Publication statusPublished - 2014

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Oleic Acid
Emulsions
Surface-Active Agents
Oils
Emulsification
Water

ASJC Scopus subject areas

  • Chemistry(all)

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PH effect on properties of surfactant-free oil-in-water emulsion prepared with oleic acid. / Akizuki, Yuta; Yoshida, Mikio; Ishida, Naoyuki; Oshiki, Toshiyuki; Oshitani, Jun.

In: Chemistry Letters, Vol. 43, No. 5, 2014, p. 604-606.

Research output: Contribution to journalArticle

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