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Citation: Li Xue-Gang, Wu Guang-Quan, Zhang Ming-Xiao, Liu Fa-Min. The Surface Activity and Solubilization Ability of Mixed Surfactant[J]. Acta Physico-Chimica Sinica, ;1995, 11(08): 758-761. doi: 10.3866/PKU.WHXB19950819 shu

The Surface Activity and Solubilization Ability of Mixed Surfactant

1.
Southwest Agricaltaral University,Centre Laboratory,Chongqing 630716

Received Date: 11 October 1994
Available Online: 15 August 1995

The surface activity of the mixture, formed by sodium dodecylpolyoxyethylene sulfate (C12E7S) and dodecyltrihydroxyethylammonium chloride (C12NE), is much higher than that of the single one. The interaction between C12E7S and C12NE is very strong. The aqueous solution of C12E7S-C12NE is homogeneous. The solubilization of 1-pentanol by the aquous solution of C12E7S-C12NE is decrease when the mixed ratio approach 1∶1 and the solubilized curve is "V" type, in which the lowest solubilization is only about one third of the single one’s. The solubilization curve of n-hexane shows the maximum when the mixed retio approach 1:1.
- Anionic-cationic surfactant,
- Solubilization,
- Sodium dodecylpolyoxyethylene sulfate,
- Dodecyltrihydroxyethylammonium chloride
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