Abstract
Equilibrium phase transition temperatures have been determined by using a differential scanning calorimeter for lithium stearate in a series of hydrocarbons, including a re-examination of the phase behavior in mineral oil. A correlation was found between phase transition temperatures and the molecular weights of the hydrocarbons, just as obtained by Cox for the systems of lithium stearate-mineral oil. Moreover, the difference of the crystal habits of the soap fibers in hydrocarbons has been observed with the scanning electron microscope.
