Effect of electrolytes on formulation and stability of water/di-ethyl oxalate/tween micro-emulsions

Kamal Al-Malah, Hasan Mousa, Eihab Bani Hani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The formulated micro-emulsions was mainly composed of distilled water as the aqueous phase, diethyl oxalate as the oil phase, and Tween 80 as the surface-active agent (surfactant). Iso-propylene glycol was evaluated as the co-surfactant, thus both (water/diethyl oxalate/Tween-80) and (water/diethyl oxalate/Tween 80/isopropylene glycol) microemulsions were formulated. The effect of different electrolytes on the micro-emulsification of the oil phase was studied. Phase diagrams that represent the formulated micro-emulsions were constructed. The area within the phase diagram where the micro-emulsion is stable could be broadened using a set of strong or weak electrolytes, as additives or co-surfactants, which will result in thin, Newtonian behaving fluids. The use of weak electrolytes, e.g., acetic or propanoic acid, gave better characteristics in terms of a broader marginal stability and longer shelf-life under high-temperature, ambient, and cold conditions. This is an abstract of a paper presented at the CHISA 2012 - 20th International Congress of Chemical and Process Engineering and PRES 2012 - 15th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (Prague, Czech Republic 8/25-29/2012).

Original languageEnglish
Title of host publicationCHISA 2012 - 20th International Congress of Chemical and Process Engineering and PRES 2012 - 15th Conference PRES
Publication statusPublished - 2012
Event20th International Congress of Chemical and Process Engineering, CHISA 2012 and 15th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES 2012 - Prague, Czech Republic
Duration: Aug 25 2012Aug 29 2012

Other

Other20th International Congress of Chemical and Process Engineering, CHISA 2012 and 15th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES 2012
CountryCzech Republic
CityPrague
Period8/25/128/29/12

Keywords

  • Acetic acid
  • Diethyl oxalate/iso-propylene glycol
  • Glycol
  • Micro-emulsion
  • Propanoic acid
  • Surfactants
  • Tween

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)

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  • Cite this

    Al-Malah, K., Mousa, H., & Hani, E. B. (2012). Effect of electrolytes on formulation and stability of water/di-ethyl oxalate/tween micro-emulsions. In CHISA 2012 - 20th International Congress of Chemical and Process Engineering and PRES 2012 - 15th Conference PRES