Following a line of argument proposed earlier by in the context of crystallization in a three-component system, Miller et al suggested that the concentration of a diffusively transferred species across an interface first reaches a supersaturation, from where stable phases are formed via spinodal process. This idea of the formation of an organized structure from a supersaturated solution was proposed originally by in the context of crystallization. See also the work of Ostrovsky and Good , and the references cited therein, which illustrates the application of this idea to emulsion formation. In order to exemplify the scope of chemical instability and from there the phase transformation, Friberg 34 mapped the evolution of the concentration of the species on a ternary phase diagram, which allowed visualization of which of the paths lead to single-or two-phase regions. Recently, Neibloom et al extended similar ideas to spontaneous emulsification involving chemical reaction and elucidated the roles of diffusion and stranding underlying such processes.