 Water slash ethyl acetate slash ethanol is a commonly used green extraction system. Two different types of phase separation can occur upon centrifugation, centrifuge-induced criticality and centrifuge-induced emulsification. Centrifuging these mixtures produces a predictable composition profile which can be described by a ternary phase diagram. This diagram shows how the addition of gravitational energy to the free energy of mixing affects the composition of the mixture. Experimental results match up well with the predictions of the model, indicating that the concentration gradient is small but still useful when combined with temperature cycling. These findings open up new possibilities for centrifugal separation, even when control over the process is difficult due to temperature changes. This article was authored by Helmut Kulfen, Rose Rosenberg, Dirk Hafk and others.