oxo[(oxoferrio)oxy]iron

• ChemBase ID: 137055
• Molecular Formular: Fe2O3
• Molecular Mass: 159.6882
• Monoisotopic Mass: 159.85461886
• SMILES: O=[Fe]O[Fe]=O
• Canonical SMILES: O=[Fe]O[Fe]=O
• InChI: InChI=1S/2Fe.3O
• InChIKey: JEIPFZHSYJVQDO-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: oxo[(oxoferrio)oxy]iron
• IUPAC Traditional name: ferric oxide
• Synonyms: Ferric oxide; Iron(III) oxide; Iron oxide in ethanol; Iron(III) oxide, dispersion; Iron oxide in water; 三氧化二铁; 氧化铁(III); 氧化铁（分散于乙醇中）; 氧化铁分散体; 氧化铁（分散于水中）

Database IDs

• CAS Number: 1309-37-1
• EC Number: 215-168-2
• MDL Number: MFCD00011008
• PubChem SID: 24877672; 162231320; 24847565; 24868491; 24878791; 24847566; 24871705; 24858769; 24861096; 24852178
• PubChem CID: 518696

CALCULATED PROPERTIES

• H Acceptors: 2
• H Donor: 0
• LogD (pH = 5.5): 0.3684
• LogD (pH = 7.4): 0.3684
• Log P: 0.3684
• Molar Refractivity: 4.236 cm^3
• Polarizability: 8.774179 Å^3
• Polar Surface Area: 43.37 Å^2
• Rotatable Bonds: 2
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Apperance: nanoparticles; nanopowder; pieces; powder; powder and chunks; sintered
• Density: 1.17 g/mL±0.1 g/mL at 25 °C
• pH: 3.7±0.3

Safety Information

• RTECS: NO7400000
• European Hazard Symbols: Corrosive (C); Flammable (F); Irritant (Xi)
• UN Number: 2924
• German water hazard class: 1; nwg
• Hazard Class: 3
• Packing Group: 3
• Risk Statements: 11-34; 36/37/38
• Safety Statements: 26; 7-16-26-36/37/39-45
• GHS Pictograms: GHS07
• GHS Signal Word: Warning
• GHS Hazard statements: H315-H319-H335
• GHS Precautionary statements: P261-P305 + P351 + P338
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves
• RID/ADR: UN 2924 3/PG 3

Product Information

• Purity: ≥95%; ≥97.0% (complexometric); ≥98.0%; ≥99%; ≥99.0% (RT); 99.8% trace metals basis; 99.9% trace metals basis; 99.98% trace metals basis; 99.998%; 99.999% trace metals basis
• Concentration: 20 wt. % in ethanol; 20 wt. % in H2O
• Grade: puriss.; puriss. p.a.; SAJ first grade
• Particle Size: <100 nm (DLS); <110 nm (DLS); <5 μm; <50 nm; 3-12 mm
• Description: crystalline (primarily γ)
• Cation Traces: Ca: ≤100 mg/kg; Ca: ≤500 mg/kg; Cd: ≤10 mg/kg; Co: ≤50 mg/kg; Cr: ≤50 mg/kg; Cu: ≤100 mg/kg; Cu: ≤50 mg/kg; K: ≤200 mg/kg; Mg: ≤300 mg/kg; Mg: ≤50 mg/kg; Mn: ≤3000 mg/kg; Na: ≤200 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤200 mg/kg; Zn: ≤50 mg/kg
• Antion Traces: chloride (Cl-): ≤1000 mg/kg; sulfate (SO42-): ≤1000 mg/kg
• Surface Area: 50-245 m2/g
• Loss on Drying: ≤0.6% loss on ignition; ≤1% loss on ignition
• Quality: purified
• Avg. Particle Size: <30 nm (APS)
• Empirical Formula (Hill Notation): Fe2O3

DETAILS

Sigma Aldrich - 544884

Frequently Asked Questions
Live Chat and Frequently Asked Questions are available for this Product.
Packaging
5, 25 g in glass bottle
Protocols & Applications
Chemical Synthesis of Monodisperse Magnetic Nanoparticles

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General description
Modification type: molecular - ethoxylated carboxylic acid
Packaging
100 g in glass bottle
Legal Information
Product of Buhler, Inc.

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