Abstract

As part of a continuing effort on crystal growth in gels, the authors have grown cuprous chloride in silica gel using a system including large reservoirs and allowing for easy removal of the complete gel volume. Clear, tetrahedral CuCl crystals larger than 6 mm on an edge have been produced. Evaluation of the conditions in the gel has also been made by chemical analysis of the gels both as a function of distance from the gel solution interface and of time. Concentration gradients in the gel are presented as well as the degree of saturation in the gel. The results indicate that approximately steady state conditions are set up in the gel within one week. In the areas of the most satisfactory crystal growth the saturation ratio is approximately 1.2.

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