  Nucleosynthesis in the oceans of accreting neutron stars can produce novel
mixtures of nuclides, whose composition is dependent on the exact astrophysical
conditions. Many simulations have now been done to determine the
nucleosynthesis products in the ocean, but the phase separation at the base of
the ocean, which determines the composition of the crust, has not been as well
studied. In this work, we simulate the phase separation of a composition, which
was predicted to produce a crust enriched in light nuclei, in contrast with
past work which predicts that crust is enriched in heavy nuclei. We perform
molecular dynamics simulations of the phase separation of this mixture using
the methods of Horowitz $\textit{et. al.}$ (2007). We find good agreement with
the predictions of Mckinven $\textit{et al.}$ (2016) for the phase separation
of this mixture. Moreover, this supports their method as a computationally
efficient alternative to molecular dynamics for calculating phase separation
for a wider regime of astrophysical conditions.
