Imperial College London


Faculty of Natural SciencesDepartment of Chemistry

Professor of Chemical Physics



+44 (0)20 7594 5797j.seddon Website




207EMolecular Sciences Research HubWhite City Campus






BibTex format

author = {Khan, H and Seddon, JM and Law, RV and Brooks, NJ and Robles, E and Cabral, JT and Ces, O},
doi = {10.1016/j.jcis.2018.11.021},
journal = {Journal of Colloid and Interface Science},
pages = {75--82},
title = {Effect of glycerol with sodium chloride on the Krafft point of sodium dodecyl sulfate using surface tension},
url = {},
volume = {538},
year = {2019}

RIS format (EndNote, RefMan)

AB - The effect of glycerol with sodium chloride (NaCl) on the phase behaviour of sodium dodecyl sulfate (SDS) near the Krafft point was studied by surface tension analysis using the pendant drop method. The critical micelle concentration (CMC) and Krafft Temperature (TK) of SDS in water: glycerol mixtures, across the full composition range, and in NaCl solutions within 0.005–0.1M were obtained. The pendant drop method successfully allowed us to determine the Krafft point of SDS in high glycerol systems where other traditional methods (e.g. conductivity) have been ineffective. Overall the addition of glycerol increases the CMC and the TK, thus shifting the Krafft point of SDS to higher temperatures (increasing crystallisation temperatures) and higher SDS content in the presence of glycerol, which is interpreted as a result of the reduction in solvent polarity which opposes micellization. The addition of NaCl to the SDS – water-glycerol systems brings the CMC back down, while having no significant effect on the TK. Our results establish a robust route for tuning the Krafft point of model surfactant SDS by adjusting solvent quality and salt content.
AU - Khan,H
AU - Seddon,JM
AU - Law,RV
AU - Brooks,NJ
AU - Robles,E
AU - Cabral,JT
AU - Ces,O
DO - 10.1016/j.jcis.2018.11.021
EP - 82
PY - 2019///
SN - 0021-9797
SP - 75
TI - Effect of glycerol with sodium chloride on the Krafft point of sodium dodecyl sulfate using surface tension
T2 - Journal of Colloid and Interface Science
UR -
UR -
UR -
UR -
VL - 538
ER -