ferrous hydroxide

chemical compound

Chemical data

Formula: FeH2O2
Molecular weight: 89.86 g/mol
IUPAC name: iron(2+) dihydroxide
SMILES: [OH-].[OH-].[Fe+2]
InChIKey: NCNCGGDMXMBVIA-UHFFFAOYSA-L
Polar surface area: 2 Å²
H-bond donors: 2
H-bond acceptors: 2
Formal charge: 0

via PubChem

Wikidata facts

Mass: 89.94
Image: Hydroxid železnatý.PNG

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canonical SMILES: [OH-].[OH-].[Fe+2]
Commons category: Iron(II) hydroxide
density: 3.4
chemical formula: FeH₂O₂
Mohs' hardness: 3.75
decomposition point: 175
standard enthalpy of formation: -574

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Article

Iron (II) hydroxide or ferrous hydroxide is an inorganic compound with the formula Fe(OH)2. It is produced when iron (II) salts, from a compound such as iron(II) sulfate, are treated with hydroxide ions. Iron(II) hydroxide is a white solid, but even traces of oxygen impart a greenish tinge. The air-oxidised solid is sometimes known as "green rust".

Preparation and reactions