The Malaysian Journal of Analytical Sciences Vol 12 No 3 (2008): 536 – 541

 

 

PALM-BASED LAURYL ALCOHOL ETHOXYLATE BEHAVIOURAL STUDY AND RECOMMENDATIONS IN PERSONAL CARE APPLICATIONS

 

Lim Hong Ngee¹, Anuar Kassim¹, Atan Sharif¹, Dzulkefly Kuang¹, Ambar Yarmo², Zarina Edris²,

Rosnah Ismail³, and Huang Nay Ming⁴

 

¹Chemistry Department, Faculty of Science, Universiti Putra Malaysia,

43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.

²School of Chemical Sciences and Food Technology, Faculty of Science and Tachnology,Universiti Kebangsaan Malaysia,

43000 Bandar Baru Bangi, Selangor Darul Ehsan, Malaysia.

³AOTD MPOB, Lot 9 & 11, Jalan P10/14, Seksyen 10, 43650 Bandar Baru Bangi, Selangor Darul Ehsan, Malaysia.

⁴School of Applied Physics, Faculty of Science and Technology,Universiti Kebangsaan Malaysia,

43000 Bandar Baru Bangi, Selangor Darul Ehsan, Malaysia.

 

Abstract

Palm-based lauryl alcohol ethoxylate was synthesized with 6 moles of ethylene oxide using an ethoxylation reactor. The 6 moles of ethylene oxide chain length was approximately the same length as the palm-based lauryl alcohol. The synthesized lauryl alcohol ethoxylate consisted of an average of 6 moles of ethylene oxide and was labeled as C₁₂EO₆. The molecular structure of lauryl alcohol ethoxylate was determined by Fourier Transformed Infrared Spectroscopy (FTIR). The ternary phase diagrams for olive or olein oil/water/C₁₂E₆   systems were investigated at 25^oC. The important features of the ternary phase diagrams are the emulsion and the concentrated  emulsion  phases. Optical microscope, particle size analyser and rheometer were used to characterize the  different compositions of emulsions. Different consistencies of emulsions were recommended for the personal care applications.

 

Keywords: palm-based lauryl alcohol ethoxylate, ethoxylation reactor, ternary phasediagram, emulsion, concentrated emulsion

 

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