| http://www.w3.org/ns/prov#value | - c amines, alkyl and aromatic sulfides, and the like, present in an amount of from 0 to about 10 percent by weight, and preferably from 0 to about 5 percent by weight, pH controlling agents, including acids such as acetic acid, phosphoric acid, boric acid, sulfuric acid, nitric acid, hydrochloric acid, and the like, bases such as potassium hydroxide, sodium hydroxide, lithium hydroxide, ammonium hy
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