Passive iron

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Iron that has been acid treated to make it corrosion resistant. A strong oxidizing agent, such as nitric acid, forms a protective oxide coating on the surface.

Synonyms and Related Terms

fer passiv (Fr.); passief ijzer (Ned.); ao passivo (Port.)


  • Richard S. Lewis, Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996

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