Advertisement

Comparison of sodium dodecylsulfate apparent molar volumes and micellar aggregation numbers

  • Sz. Vass Török
  • Gy. Jákli
  • E. Berecz
Amphiphile Solutions
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 76)

Abstract

The apparent molar volume of sodium dodecylsulfate (SDS) was determined vs. surfactant concentration in normal and 99.85 % heavy water solutions at 25 °C up to 0.8 mol/dm3. The apparent molar volume data in normal water were found to be systematically greater than those in heavy water. The apparent volume of aggregated SDS molecules v was found to be constant; in normal water for SDS concentrations greater than 0.04 mol/dm3, v=(4.1472 ± 0.0049) · 10−22 cm3, indicating no change in the intermolecular forces inside SDS micelles of increasing size.

Key words

Sodium dodecylsulfate apparent molar volume micellar aggregation numbers normal and heavy water aggregate molecules 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Glasstone S (1946) Textbook of Physical Chemistry. 2nd ed, Van Nostrand, New York, p 239Google Scholar
  2. 2.
    Musbally GM, Perron G, Desnoyers JE (1974) J Colloid Interface Sci 48:494CrossRefGoogle Scholar
  3. 3.
    Doughty HA (1979) J Phys Chem 83:2621CrossRefGoogle Scholar
  4. 4.
    Kell GS (1977) J Phys Chem Ref Data 6:1109CrossRefGoogle Scholar
  5. 5.
    Mukerjee P, Mysels KJ (1971) Critical Micelle Concentrations of Aqueous Surfactant Systems. Nat Stand Ref Data Ser, Nat Bur Stand 36 US Government Printing Office, Washington DCGoogle Scholar
  6. 6.
    Hayter JB, Penfold J (1983) Colloid Polym Sci 261:1022CrossRefGoogle Scholar
  7. 7.
    Sheu EY, Wu CF, Chen SH, Blum L (1983) Phys Rev A32:3807Google Scholar
  8. 8.
    Cser L, Jákli Gy, Kajcsos Zs, Vass Sz, Borbély S, Bezzabotnov VYu, Ostanievich YuM, Juhäsz E, Lelkes M (1986) Proc 6th Int symposium on Surfactants in Solution. New Dehli, India, AugustGoogle Scholar
  9. 9.
    Cabane B, Duplessix R, Zemb T (1985) J Phys 46:2161Google Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1988

Authors and Affiliations

  • Sz. Vass Török
    • 1
    • 2
  • Gy. Jákli
    • 2
  • E. Berecz
    • 1
    • 2
  1. 1.Technical University of Heavy IndustryMiskolc-EgyetemvárosHungary
  2. 2.Central Research Institute for PhysicsHungarian Academy of SciencesBudapestHungary

Personalised recommendations