Acta Phys. -Chim. Sin. ›› 2000, Vol. 16 ›› Issue (10): 936-940.doi: 10.3866/PKU.WHXB20001013

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Physico-chemical Properties of Microemulsion of 2-ethylhexylphosphonic Acid Mono 2-ethylhexyl Ester Saponified by Sodium Hydroxide

Wang Gui-Ping, Chen Qiao-Yun, Li Rong-Xi, Zeng Ping   

  1. Department of Chemistry Xiangtan University,Xiangtan 411105|Hunan Buileing and Material School,Xiangtan 411103
  • Received:1999-11-02 Revised:2000-05-08 Published:2000-10-15
  • Contact: Wang Gui-Ping


The microemulsion system of HA(2-ethylhexylphosphonic acid mono 2-ethylhexyl ester) / kerosene not containing cosurfactant has been investigated. The physico-chemical properties, such as phase behaviour, conductivity etc. of microemulsion formed by HA-kerosene saponified by different concentrations of sodium hydroxide have been measured . The results show that the properties are different from the microemulsion system containing cosurfactant. The structure of the microemulsion has been discussed. Furthermore, the effect of H2O、 NaCl、 NH4Cl on the properties of microemulsion have also been studied.

Key words: 2-ethylhexylphosphonic acid mono 2-ethylhexy ester, Microemulsion, Saponified