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Citation: Hu Zhengshui, Xin Huizhen, Pan Ying, Liu Zhixiang, Fu Xun. Phase Behavior of the Extraction Systems Containing Sodium Di-Alkyl Phosphates and Phosphonates[J]. Chinese Journal of Applied Chemistry, ;1995, 12(5): 10-14. shu

Phase Behavior of the Extraction Systems Containing Sodium Di-Alkyl Phosphates and Phosphonates

Qingdao Institute of Chemical Technology, Qingdao 266042

Received Date: 3 October 1994
Revised Date: 21 April 1995

The sodium di-alkyl phosphates(phosphonates) NaDEHP,NaEHEHP and NaDTMPP (NaA) used in preserit paper are anionic surfactants. The water solubilization in the W/O microemulsion systems of NaA-ROH-oil-H₂O has been measured;the microemul-sion regions have been determined by means of pseudo-ternary phase diagrams;the third phase formation and the transition of Winsor type Ⅰ,Ⅱ,Ⅲ have been investigated under different conditions. The effect of oil,alcohol, salinity and temperature on the phase behavior has been dis-cussed.
- diethylhexyl phosphoric acid,
- ethylhexyl phosphonic acid mono-ethylhexyl ester,
- ditrimethylpentyl phosphinic acid,
- microemulsion,
- phase behavior
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