The Preparation of Surface Chemically Pure Sodiumn-Dodecyl Sulfate by Foam Fractionation

Aqueous Solution of Anionic Surfactants Mixed with Soils Show a Synergistic Reduction in Surface Tension

“…The cmc estimated for SDS in the absence of soil using the data shown in Fig. 2a, b is 4.9 mM, which is much lower than the value quoted by Hines (1996) of 7.9 mM. This discrepancy arises for the following reason.…”

“…It is evident that the data obtained for SDS solutions without soil present show a local minimum in the vicinity of the break. The local minimum in the data is attributed to the presence of a hydrophobic impurity in the SDS (Hines 1996). This depression has been observed by a variety of authors and is due to the presence of small amounts of dodecanol.…”

Neutron Reflection from Mixtures of Sodium Dodecyl Sulfate and Dodecyl Betaine Adsorbed at the Hydrophobic Solid/Aqueous Interface

“…The product was recrystallized addition, the physical reality suggested by each model must be examined. Thus the parameters may vary only within set from ethanol before final purification using the method previously described ( 16 ) . The purity of both h-and dranges and are not always allowed to be independent of each other.…”

“…The protonated and r(z) is a function of the distance perpendicular to the SDS ( h-SDS ) used was purchased from Polysciences Inc. interface. The scattering length density, r, is defined as and purified using procedures described elsewhere ( 16 ) . The deuterated analogue, d-SDS, was synthesized as fol-…”

“…The purity of both h-and dranges and are not always allowed to be independent of each other. When the scattering length density of the solvent is SDS was assessed as described elsewhere ( 16 ) . end pieces with steel bolts, which were tightened carefully…”