A crystallizer for the investigation of conditions of growth of single crystals from solutions

Abstract

Abstract The crystallizer of the Walker‐Kohman type for isotherm growing of single crystals from solutions is described which has been designed to provide the maintenance of constant conditions of crystallization chosen in advance and the investigation of the influence of these conditions on the resulting structural regularity of the crystals as grown. The temperature of the solution can be kept inside the interval from 30 to 60°C, with an accuracy ±0.002°C. The equipment allows the setting and keeping the requested value of supersaturation, hydrodynamic conditions, thermal stabilization of the crystallization solution and enables the optic and gravimetric observing of the single crystal during its growth. The total function of the described equipment was tested by growing single crystals of triglycine sulphate at 52°C.