Goethite (Fe(OH)O)

Base Information

• Chemical Name: Goethite (Fe(OH)O)
• CAS No.: 20344-49-4
• Deprecated CAS: 12181-28-1,135507-54-9,681125-92-8,741267-27-6,1383942-21-9,1613413-50-5,1677663-39-6,1792172-28-1,2097266-33-4,332902-02-0,2409542-65-8,2489676-69-7,2639892-90-1
• Molecular Formula: FeHO2
• Molecular Weight: 88.8537
• European Community (EC) Number: 215-176-6
• DSSTox Substance ID: DTXSID801318339
• Wikipedia: Goethite,Lepidocrocite,Akaganeite
• Wikidata: Q412739
• Mol file: 20344-49-4.mol

Synonyms:alpha-FeOOH;goethite

Chemical Property of Goethite (Fe(OH)O)

Chemical Property:

• Appearance/Colour: reddish-brown crystalline solid
• Melting Point: 135 °C
• PSA: 23.06000
• Density: 3.4-3.9 g/cm³
• LogP: -0.29810
• Water Solubility.: Soluble in mineral acids. Insoluble in water and ethanol.
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 88.932590
• Heavy Atom Count: 3
• Complexity: 10.3

Purity/Quality:

99% ^*data from raw suppliers

Iron(III) oxyhydroxide in water at pH = 3.0 +- 0.5 (FEO-W320) ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Mineral Dusts -> Other Mineral Dusts
• Canonical SMILES: O[Fe]=O
• Recent EU Clinical Trials: Investigate the differences between treating Chronic Kidney Disease - Mineral and Bone Disorder with an iron-containing phosphate binder or a calcium-containing phosphate binder in Chronic Kidney Disease stage 3-5.
• Uses: In purifying water; as absorbent in chemical processing; as pigment; as catalyst. Iron(III) hydroxide, γ-phase is used in purifying water and as an absorbent in chemical processes. It is involved in the preparation of iron oxide-hydroxides nanoparticles, which is used as a very good adsorbent for lead removal from aquatic media. It is also used as a pigment, as a catalyst and in aquarium water treatment as a phosphate binder. Further, it is employed in the paints-lacquers-varnishes industry.

Technology Process of Goethite (Fe(OH)O)

There total 9 articles about Goethite (Fe(OH)O) which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 95.0%

iron(III) chloride hexahydrate + sodium hydroxide (1310-73-2) → hydrated iron(III) oxide (20344-49-4,1310-14-1)

Guidance literature:

In water; at 100 ℃; for 12h; pH=7-8; Autoclave; Large scale;

Reference yield:

ferrous(II) sulfate heptahydrate + dihydrogen peroxide (7722-84-1) → hydrated iron(III) oxide (20344-49-4,1310-14-1)

Guidance literature:

ferrous(II) sulfate heptahydrate; With sodium hydroxide; In water; at 20 ℃; for 0.5h; Inert atmosphere;

dihydrogen peroxide; In water; at 20 ℃; for 18h; Inert atmosphere;

DOI:10.1002/anie.202014331

Reference yield:

tetrasodium ferrate(IV) + water (7732-18-5) → hydrated iron(III) oxide (20344-49-4,1310-14-1) + sodium ferrate(VI)

Guidance literature:

In water; complete hydrolyze for 30 min; monitored by Moessbauer Spectroscopy;

DOI:10.1006/jssc.2002.9520

upstream raw materials:

oxygen

water

sodium hydroxide

dihydrogen peroxide

Downstream raw materials:

FeHO2, α