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Published on: August 14, 2018
Chiral symmetry breaking in crystallization: the role of convection
1Centro de Investigaciones Quimicas, Universidad Autonoma del Estado de Morelos, Avenida Universidad 1001, Colonia Chamilpa, C.P. 62210, Cuernavaca, Morelos, Mexico.
Abstract:
Chiral symmetry breaking in stirred crystallization of sodium chlorate ( NaClO3) occurs via the production of secondary crystals from a single "mother crystal." Martin, Tharrington, and Wu [Phys. Rev. Lett. 77, 2826 (1996)] investigated this phenomenon and concluded that it was mechanical crushing of a crystal by the stir bar, not convection, that produces secondary crystals from a single crystal. Here we report the generation of secondary crystals of sodium chlorate when a saturated solution of sodium chlorate is simply made to flow over a sodium bromate ( NaBrO3) crystal. This clearly shows that fluid flows alone can generate and disperse secondary nuclei.
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