Surface tension for aqueous solutions of sodium 1-dodecanesulfonate

被引：8

作者：

Hernainz, Francisco ^{[1
]}

Calero, Monica ^{[1
]}

Blazquez, Gabriel ^{[1
]}

Caro, Antonio ^{[1
]}

机构：

[1] Univ Granada, Fac Ciencias, Dept Ingn Quim, Granada 18071, Spain

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2006年 / 51卷 / 04期

关键词：

D O I：

10.1021/je050530g

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A study has been carried out on the modification of surface tension in aqueous solutions of the collector sodium 1-dodecanesulfonate, at temperature of 293.15 K and pH between 4 and 10. The results of this study show that the surface tension varies very slightly when the pH in the medium of flotation bath is changed. The critical micelle concentration has been identified, and certain thermodynamic quantities associated with the adsorption of sodium 1-dodecanesulfonate in the solution-air interface were also obtained. Moreover, the values for the molecular limiting area range between (38 to 49) angstrom(2) per molecule and standard adsorption energy between (-29.00 to -29.61) kJ(.)mol(-1), at pH between 4 and 10.

引用

页码：1216 / 1219

页数：4

共 19 条

[1]

Adamson A.W., 1982, PHYS CHEM SURFACES

[2]

BRADY AP, 1949, J PHYS CHEM-US, V53, P55

[3]

CABRERIZO M, 1986, THESIS U GRANADA SPA

[4]

CARO A, 1997, THESIS U GRANADA SPA

[5]

CENTELLAS F, 1989, TENSIOACTIVOS SUS AP, pCH3

[6]

SURFACE HYDROLYSIS IN SODIUM LAURYL SULFATE SOLUTIONS AND ITS EFFECT ON SURFACE TENSION AND ON ADSORPTION AT THE SOLID-AQUEOUS SOLUTION INTERFACE [J].

COOK, MA ;

TALBOT, EL .

JOURNAL OF PHYSICAL CHEMISTRY, 1952, 56 (03) :412-416

[7]

Davies J., 1956, J COLLOID SCI, V11, P377

[8]

Variation of surface tension in aqueous solutions of sodium dodecyl sulfate in the flotation bath [J].

Hernáinz, F ;

Caro, A .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2002, 196 (01) :19-24

[9]

HERNAINZ F, 1995, J COLLOID INTERF SCI, V173, P8

[10]

The preparation of surface chemically pure sodium n-dodecyl sulfate by foam fractionation [J].

Hines, JD .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1996, 180 (02) :488-492

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