Citation: ZHU Yan, YUAN Guang, YUAN Shuai, CHEN Shaojie, YAO Weiqin, TIAN Longzhao, QIN Fan, LIU Linmei. Influence of Alkali and Salt on Phase Diagram of Sodium Dodecyl Sulfate/n-Pentanol-Cyclohexane-Water Pseudo Ternary Systems[J]. Chinese Journal of Applied Chemistry, ;2017, 34(7): 833-838. doi: 10.11944/j.issn.1000-0518.2017.07.160445 shu

Influence of Alkali and Salt on Phase Diagram of Sodium Dodecyl Sulfate/n-Pentanol-Cyclohexane-Water Pseudo Ternary Systems

ZHU Yan ^a,*,, ,
YUAN Guang ^a ,
YUAN Shuai ^a,b ,
CHEN Shaojie ^a ,
YAO Weiqin ^a ,
TIAN Longzhao ^a ,
QIN Fan ^a ,
LIU Linmei ^a

a.
College of Environment and Chemical Engineering, Xi'an Polytechnic University, Xi'an 710048, China
b.
Department of Material Science and Engineering, Zhejiang University, Hangzhou 310027 China

Corresponding author: ZHU Yan, zhuyan_1963@126.com
Received Date: 7 November 2016
Revised Date: 18 January 2017
Accepted Date: 22 February 2017

Fund Project: the National Natural Science Foundation of China 50873081

Figures(7)

An important application of psudo ternary phase diagrams is to obtain microemulsion for nano material preparation. Therefore, psudo ternary phase diagrams of sodium dodecyl sulfate(SDS)/n-C₅H₁₁OH-cyclohexane-water at 45 ℃ and its conductivity were studied. Pseudo ternary phase diagrams agree well with conductivity measurement. Then psudo ternary phase diagrams of SDS/n-C₅H₁₁OH-cyclohexane-water, SDS/n-C₅H₁₁OH-cyclohexane-Zn(NO₃)₂, SDS/n-C₅H₁₁OH-cyclohexane-NaOH at 45 ℃ and 65 ℃ were measured and compared. The influence of alkali NaOH and salt Zn(NO₃)₂ on peudo ternary phase diagrams was discussed. The result shows that oil-in-water(O/W) and water-in-oil(W/O) microemulsion areas are smaller after (Zn(NO₃)₂) or (NaOH) was added into SDS/n-C₅H₁₁OH-cyclohexane-water system. The O/W microemulsion areas disappeared in SDS/n-C₅H₁₁OH-cyclohexane-NaOH peudo ternary phase diagrams at 45 ℃. There are still 5 areas in psudo ternary phase diagrams and smaller O/W and W/O microemulsion areas after NaOH or Zn(NO₃)₂ was added in SDS/cyclohexane-water system at 65 ℃. These study results were applied in the preparation nano ZnO particle in microemulsion system. Tansimission electron microscopy and X-ray diffraction studies show that the sample preparaed by the guidance of psudo ternary phase diagrams is nano ZnO particle.
- peudo ternary phase diagrams,
- nanoparticle,
- water-in-oil microemulsion,
- alkali,
- salt
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