[en] Studied is CuCr₂Se₄ interaction with the salts CuI, CdCl₂, NaCl, CuBr and salt mixtures PbCl₂-CaCl₂, PbCl₂-CdCl₂ using the method of differential thermal analysis. Conditions of CuCr₂Se₄ monocrystal obtaining are determined by the method of spontaneous crystallization from solutions in molten salts. To obtain CuCr₂Se₄ monocrystals chromium chloride, cadmium chloride and mixture of cadmium chloride and lead chloride proved to be perspective solvents. Crystals grown in these molten salts are easily separated from the solvent and well-bounded