Lesson plan

Green rust

conditions in the absence of dissolved oxygen. Green rust is a generic name for various green crystalline chemical compounds containing iron(II) and iron(III) cations, the hydroxide ( ) anion, and another anion such as carbonate ( ), chloride ( ), or sulfate ( ), in a layered double hydroxide (LDH) structure. The most studied varieties are the following: * carbonate green rust – GR ( ): [ ( ) 12 ] 2+ · [ ·2 ] 2− ; * chloride green rust – GR ( ): [ ( ) 8 ] + · [ ·n ] − ; * sulfate green rust – GR ( ): [ ( ) 12 ] 2+ · [ ·2 ] 2− . Other varieties reported in the literature are bromide , fluoride , iodide , nitrate , and selenate . Green rust was first recognized as a corrosion crust on iron and steel surfaces. It occurs in nature as the mineral fougerite.

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Article summary

conditions in the absence of dissolved oxygen. Green rust is a generic name for various green crystalline chemical compounds containing iron(II) and iron(III) cations, the hydroxide ( ) anion, and another anion such as carbonate ( ), chloride ( ), or sulfate ( ), in a layered double hydroxide (LDH) structure. The most studied varieties are the following: * carbonate green rust – GR ( ): [ ( ) 12 ] 2+ · [ ·2 ] 2− ; * chloride green rust – GR ( ): [ ( ) 8 ] + · [ ·n ] − ; * sulfate green rust – GR ( ): [ ( ) 12 ] 2+ · [ ·2 ] 2− . Other varieties reported in the literature are bromide , fluoride , iodide , nitrate , and selenate . Green rust was first recognized as a corrosion crust on iron and steel surfaces. It occurs in nature as the mineral fougerite.

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