Barium iodide salt hydrate powder

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PROBLEM TO BE SOLVED : To provide a barium iodide hydrate powder which is especially suitable as a raw material for a rare earth-activated barium fluoroiodide-based photostimulable phosphor and which does not contain phosphorus substantially and to provide its manufacturing method. ?SOLUTION : The barium iodide hydrate is expressed by the general formula; BaI2-nH2O (wherein, n is 1-2). The barium iodide hydrate powder contains phosphorus of 10 ppm or less. The barium iodide hydrate is manufactured by subjecting a barium compound, iodine and a reducing agent into contact in an aqueous solvent. ?COPYRIGHT : (C)2006, JPO&NCIPI ?