Abstract
Abstract Exploratory crystal growth gives as fast as possible and as economically as possible first crystals for an assessment of chemical, structural and physical properties. The arsenal of the crystal grower is scanned and solution growth techniques are selected as first choice for exploratory growth. Equipment for obtaining rapidly the solubility data is described and the use of a modified temperature difference procedure under constant supersaturation is shown. It was used in A2BX4 halides with incommensurate phases and organically substituted halide layer perovskites. Low solubility and low thermal stability materials, such as Ag2H3IO6, KHC4H4O6 and PbHPO4 are grown by gel techniques. The growth of PbH1-xDxPO4 crystals was made possible by the use of (CH2O)4Si as gel forming agent. The technique of sealed metal ampoules can be used for the flux growth or reactive sintering techniques in many oxides, oxide fluorides etc. Examples mentioned are KNbO2F, NaNbO2O5F, Rb3MoO3F3 and related compounds.
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