The Krafft temperature is the temperature at which the CMC can be achieved. This temperature determines the relative solubility of surfactant in an aqueous solution. This is the minimum temperature the solution must be at to allow the surfactant to precipitate into aggregates. Below this temperature no level of solubility will be sufficient to precipitate aggregates due to minimal movement of particles in solution.  The Krafft Temperature (T) is based on the concentration of counter-ions (C). Counter-ions are typically in the form of salt. Because the T is fundamentally based on the C, which is controlled by surfactant and salt concentration, different combinations of the respective parameters can be altered. Although, the C will maintain the same value despite changes in concentration of surfactant and salt, therefore, thermodynamically speaking the Krafft temperature will remain constant.