Since the dynamic properties in paraffin mixtures are different from those
in alloys and polymer blends, paraffin mixtures are believed to be another
class of substances establishing the "universality" of the dynamical scalin
g behavior of phase separation. In this paper, the scaled structures of mic
rophase separation in paraffin mixtures are described using a scaling funct
ion based on a two-phase model with kinetics based on the Cahn-Hilliard equ
ation. It has been demonstrated that at the late stages of the microphase s
eparation the scaling behavior in the paraffin mixtures agrees well with th
e universal features predicted by the scaling function. The scaled structur
es of microphase separation in paraffin mixtures can be directly calculated
from the volume fraction of the minority phase without any adjustable para
meter.