What is a Iron hydroxide (Fe(OH)₂ and Fe(OH)₃)?

Iron hydroxide (Fe(OH)₂ and Fe(OH)₃) refers to iron compounds with hydroxide ions. Iron(II) hydroxide (Fe(OH)₂) contains iron in the +2 oxidation state, while iron(III) hydroxide (Fe(OH)₃) contains iron in the +3 oxidation state. Both are insoluble in water but can react with acids and strong reducing agents. Iron(II) hydroxide can oxidize to form iron(III) hydroxide. Iron(III) hydroxide is typically a brown or reddish solid and plays a key role in corrosion and oxidation processes. It is used in wastewater treatment and electrochemical applications.

Iron hydroxide is also involved in environmental remediation, such as removing heavy metals from water, and in agricultural applications as a source of iron for soil improvement. It can also be used in chemical analysis and pharmaceutical synthesis. Iron hydroxide is involved in corrosion prevention and can be found in rust when iron undergoes oxidation.

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