In this work we deal with the mercurous chloride (Hg₂Cl₂) or calomel crystal growth in vapour phase by flux forced method, taking into account the total dissociation of calomel in mercury and mercuric chloride. The concentrations of mercury and mercuric chloride along the growth ampoule depend on the matter transport model from the source to sink. We use a molecular diffusion model of mercury and mercuric chloride through an immobile inert gas. The attempts of growth showed the key role of the concentrations of mercury and mercuric chloride as well as their ratio at the maximum of supersaturation.

Keywords: mercurous chloride, calomel, flux forced, vapour phase, supersaturation, crystal growth

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