We present a new method of Ba2MgWO6 single crystal synthesis that
allows to grow larger crystals using BaCl2 and MgCl2 flux.
Difficulties to grow single crystal of a size suitable for macroscopic material
property measurements caused the majority of characterisation being published
on polycrystalline samples. Single crystal diffraction and energy dispersive
X-ray analysis confirmed high quality of synthesised samples. Heat capacity
measurements from 300~K to 2~K do not show any transitions. However, Raman
spectra measured down to 77~K contain additional peaks at all temperatures
probed, which is in a contrast with only 4 Raman active modes expected from the
reducible representation. This calls for a more detailed study of potential
symmetry breaking that could also influence the electronic properties of the
material