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

Chinese Journal of Applied Chemistry ›› 1995, Vol. 0 ›› Issue (5): 10-14.

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

Hu Zhengshui, Xin Huizhen, Pan Ying, Liu Zhixiang, Fu Xun

Qingdao Institute of Chemical Technology, Qingdao 266042

Received:1994-10-03 Revised:1995-04-21 Published:1995-10-10 Online:1995-10-10

Abstract

Abstract: The sodium di-alkyl phosphates(phosphonates)NaDEHP,NaEHEHP and NaDTMPP(NaA)used in preserit paper are anionic surfactants.The water solubilization inthe 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 thirdphase formation and the transition of Winsor type Ⅰ,Ⅱ,Ⅲ have been investigated underdifferent conditions.The effect of oil,alcohol, salinity and temperature on the phase behavior has been dis-cussed.

Key words: diethylhexyl phosphoric acid, ethylhexyl phosphonic acid mono-ethylhexyl ester, ditrimethylpentyl phosphinic acid, microemulsion, phase behavior

Hu Zhengshui, Xin Huizhen, Pan Ying, Liu Zhixiang, Fu Xun. Phase Behavior of the Extraction Systems Containing Sodium Di-DAlkyl Phosphates and Phosphonates[J]. Chinese Journal of Applied Chemistry, 1995, 0(5): 10-14.

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

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