Precipitation of particulate trigonal selenium for use in...

Details Precipitation of particulate trigonal selenium for use in... Precipitation of particulate trigonal selenium for use in...

C - Chemistry, Metallurgy

01

B

23/328, 117/23.5

C01B 19/00 (2006.01) C01B 19/02 (2006.01) G03G 5/08 (2006.01) G03G 5/085 (2006.01) G03G 5/087 (2006.01)

Patent

CA 1054339

PRECIPITATION OF PARTICULATE TRIGONAL SELENIUM FOR USE IN PHOTOSENSITIVE DEVICES Abstract of the Disclosure A method of forming finely divided photosensitive trigonal selenium particles which comprises; forming an alkaline solution containing selenide and/or polyselenide ions, followed by the precipitation of finely divided trigonal selenium particles from said solution by the addition of an oxidation material to said alkaline solution, the latter being maintained at a temperature between about 30°C and 70°C.

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