| http://www.w3.org/ns/prov#value | - adium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, iron, ruthenium, cobalt, nickel, copper, zinc, cadmium, silver; aluminum salts such as aluminum acetate, aluminum polyaluminum chloride, aluminum halides, mixture thereof and the like, and wherein the concentration thereof is optionally in the range of from about0.1 to about 10 weight percent by weight of water.
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