Effects of NaCl and KCl Concentrations On Oil/Water Nano-emulsions Produced by PIT Method

Pourjavaheri, F, Parthasarathy, R, Kao, N, Ngothai, Y and Leow, J 2010, 'Effects of NaCl and KCl Concentrations On Oil/Water Nano-emulsions Produced by PIT Method', in M. Biggs (ed.) Chemeca 2010: Engineering at the Edge, Adelaide, Australia, 26-29 September, 2010, pp. 1-10.


Document type: Conference Paper
Collection: Conference Papers

Title Effects of NaCl and KCl Concentrations On Oil/Water Nano-emulsions Produced by PIT Method
Author(s) Pourjavaheri, F
Parthasarathy, R
Kao, N
Ngothai, Y
Leow, J
Year 2010
Conference name 38th Annual Australasian Conference of Chemical Engineering (CHEMECA 2010)
Conference location Adelaide, Australia
Conference dates 26-29 September, 2010
Proceedings title Chemeca 2010: Engineering at the Edge
Editor(s) M. Biggs
Publisher Engineers Australia
Place of publication Adelaide, Australia
Start page 1
End page 10
Total pages 10
Abstract The present work investigates the effects of NaCl and KCl salt concentrations in the ranges of 0 to 1.0 M on n-Dodecane-in-water/brine nano-emulsions produced by phase inversion temperature (PIT) method. PIT points of the oil/brine solutions were found from conductivity measurements. The stability of nano-emulsions was determined by measuring the mean size, size distribution and polydispersity index of droplets using dynamic light scattering technique and monitoring them as a function of time. The results showed that both NaCl and KCl salts depress the PIT points. However, the system without salt produces the most stable nano-emulsions. The system containing KCl solution shows lower droplets growth rate at low salt concentrations (= 0.1 M) and higher droplets growth rate at high salt concentrations (= 0.2 M) as compared with those for NaCl system within the 3 days ageing period used in this study. Also the variations in the size and size distribution of droplets with change in salt concentration are significant within the salt concentration range used in this study.
Subjects Materials Engineering not elsewhere classified
Keyword(s) Chemical engineering
Chemistry
Copyright notice © 2010 The Authors
ISBN 9780858259713
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