Growth of mixed K2NixCo(1-x)(SO4)(2)center dot 6H(2)O crystals for large supercooling without spontaneous crystallization in solution

A scheme for growing mixed K2NixCo(1-x)(SO4)(2)center dot 6H(2)O (KCNSH) single crystals under conditions of supercooling at 5 degrees C-10 degrees C without spontaneous crystallization in solution for more than a month has been proposed and implemented. The growth method is implemented according to the 'rotor crystallizer' scheme. The crystals grown were characterized by optical spectroscopy and x-ray topography. The crystals obtained demonstrated the optical properties necessary to create effective UV filters.