| http://www.w3.org/ns/prov#value | - Furthermore, salts of metals such as mercury or cadmium, aromatic sulphonic or sulphinic acids such as benzenesulphinic acid, or heterocyclics containing nitrogen such as nitrobenzimidazole, nitroindazole, optionally substituted benzotriazoles or benzothiazolium salts may also be used as anti-fogging agents.
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