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US4089796A Treatment of water or aqueous systems 失效
处理水或水体系

Treatment of water or aqueous systems
摘要:
Compositions for inhibiting corrosion and scale formation in aqueous systems which consist essentially of from 20 to 97.5% by weight of total composition of (a) a combination of zinc and hydrolyzed polymaleic anhydride and (b) 2.5 to 80% by weight of total composition of a corrosion inhibitor, particularly benzotriazole.
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