Rheology pp 629-633 | Cite as

Rheological Properties of Highly Dilute Viscoelastic Aqueous Detergent Solutions

  • Signe Gravsholt


Highly dilute aqueous solutions containing 0.2–0.3 mmol dm−3 (80–120 p.p.m.) of some cationic detergents show visible elastic recoil at 25ÛC1 although the viscosity of the solutions is as low as 0.9–1.0 mPa s2. Some of the rheological properties of aqueous solutions of one of the detergents (cetyltrimethylammonium salicylate (CTA-Sal)) have been studied3, 4. At concentrations between 0.3 and 1.0 mmol dm−3 CTA-Sal the solutions behave like ordinary Newtonian solutions at suitably low shear rates, whereas at higher shear rates the solutions show rheopectic behaviour as illustrated in fig. 1.4


Shear Rate Rheological Property High Shear Rate Sodium Salicylate Detergent Solution 
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  1. 1.
    S. Graysholt, Viscoelasticity in Highly Dilute Aqueous Solutions of Pure Cationic Detergents, J. Colloid Interface Sci. 57: 575 (1976).CrossRefGoogle Scholar
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    S. Graysholt, Physico-Chemical Properties of Highly Dilute Aqueous Detergent Solutions showing Viscoelastic Behaviour, in “Physical Chemistry of Surface Active Substances, Proc. VII Intern. Congr. Surface Active Substances, Moscow 1976”, 2: 906 (1978).Google Scholar
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    S. Graysholt, Rheopectic Behaviour of Highly Dilute Viscoelastic Aqueous Detergent Solutions, Naturwissenschaften 66: 263 (1979).ADSCrossRefGoogle Scholar
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Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • Signe Gravsholt
    • 1
  1. 1.The Royal Danish School of PharmacyCopenhagen ØDenmark

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