https://doi.org/10.1351/goldbook.K03415
The temperature (more precisely, narrow temperature range) above which the @[email protected] of a @[email protected] rises sharply. At this temperature the @[email protected] of the surfactant becomes equal to the @[email protected] It is best determined by locating the abrupt change in slope of a graph of the logarithm of the @[email protected] against \(t\) or \(\frac{1}{T}\).