All Photos(2)

Documents

COO/COA

310050

Iron(III) oxide

powder, <5 μm, ≥96%

All Photos(2)

Synonym(s):

Ferric oxide

Empirical Formula (Hill Notation):

Fe₂O₃

CAS Number:

1309-37-1

Molecular Weight:

159.69

EC Number:

215-168-2

MDL number:

MFCD00011008

PubChem Substance ID:

329753614

Quality Level

100

Assay

≥96%

form

powder

particle size

<5 μm

SMILES string

O=[Fe]O[Fe]=O

InChI

1S/2Fe.3O

InChI key

JEIPFZHSYJVQDO-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Salts

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item	544884	529311	371254
Sigma-Aldrich 310050 Iron(III) oxide	Sigma-Aldrich 544884 Iron(III) oxide	Sigma-Aldrich 529311 Iron(III) oxide	Sigma-Aldrich 371254 Iron(III) oxide
form powder	form nanopowder	form powder	form powder
particle size <5 μm	particle size <50 nm (BET)	particle size -	particle size 30-50 mesh

General description

Iron (III) oxide (Fe₂O₃) is an inorganic compound. It is one of the three main types of iron oxide. The other two are the rare iron (II) oxide (FeO) and the naturally occurring iron (II, III) oxide (Fe₃O₄), found in the mineral magnetite. In the steel industry Fe₂O₃ is the primary source of iron. In addition to being ferromagnetic, Fe₂O₃ is easily attacked by acids.

Application

Iron (III) oxide is used:

As a catalyst in the reduction of nitroarenes.
As an oxidizing agent in the synthesis of [11C] Phosgene ([11C] COCl₂).

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

How to Find the Product Number

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (Example: T1503).

Example:

T1503

Product Number

25G

Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

How to Find a Lot/Batch Number for COA

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').
For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').
For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 2

1 of 2

GF37175665

Iron oxide

Sigma-Aldrich

71063

Goethite

Electrical properties of stoichiometric BiFeO₃ prepared by mechanosynthesis with either conventional or spark plasma sintering.

Perejon A, et al.

Journal of the American Ceramic Society. American Ceramic Society, 96(4), 1220-1227 (2013)

Single phase, electrically insulating, multiferroic La-substituted BiFeO₃ prepared by mechanosynthesis.

Perejon A, et al.

Journal of Material Chemistry C, 2(39), 8398-8411 (2014)

Light-induced reduction of natural iron (III) oxide and its relevance to phytoplankton.

Finden DAS, et al.

Nature, 309, 783-784 (1984)

Synthesis and photoelectrochemical properties of nanoporous iron (III) oxide by potentiostatic anodization.

Prakasam HE, et al.

Nanotechnology, 17(17), 4285-4285 (2006)

Photoresponse of p-type zinc-doped iron(III) oxide thin films.

William B Ingler et al.

Journal of the American Chemical Society, 126(33), 10238-10239 (2004-08-19)

Stable zinc-doped iron(III) oxide thin films that exhibit p-type behavior were synthesized by spray pyrolytic deposition (SPD) on conducting indium-doped tin oxide-coated glass substrate. The highest photocurrent density of 1.1 mA/cm2 was observed at an illumination intensity of 40 mW/cm2

View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service