| http://www.w3.org/ns/prov#value | - In one form of the present invention, compounds suitable as sacrificial agents may be compounds other than aromatic carboxylic acids or salts thereof (specifically hydroxyl-substituted aromatic carboxylic acids and salts, e.g. benzoic acid, phthalic acid, isophthalic acid, terephthalic acid and their salts, or salicylic acid, m-hydroxybenzoic acid, p-hydroxybenzoic acid, and their salts (e.g. lith
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