| http://www.w3.org/ns/prov#value | - Examples of matting agents often used for silver halide photographic materials include inorganic materials such as silicon dioxide, titanium dioxide, magnesium oxide, calcium carbonate, magnesium carbonate, barium sulfate, and strontium sulfate, and fine grain powders of organic materials such as polymethyl acrylate, polymethyl methacrylate, polyacrylonitrile, polystyrene, cellulose acetate, and c
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