Ferric oxide, CAS No. 1309-37-1

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1309-37-1

Catalog No. EBD1462

CAS 1309-37-1

Name Ferric oxide

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Basic Information

Synonyms: Iron(III)oxide C.I.PigmentRed101 C.I.PigmentRed101and102 C.I.PigmentRed102 Ferricoxide Iron(III)OxideAnhydrous diirontrioxide E172 Iron(III)oxide-calcined Ironoxideanhydrous Ironoxideredbrownpowder Ironoxide-precipitated Ferricoxide,medicinal Ferricoxideforferrite Iron(III)oxide,red Hematite IRONOXIDERED C.I.P.R.101 diferricoxygen(-2)anion oxo-(oxoferriooxy)iron IronOxide Transparentironoxidered Pigmentred101 C.I.77491 Transparentironoxider

Molecular Formula: Fe2O3

Molecular Weight: 159.69

MDL Number: MFCD00011008

Categories: Synthetic Chemistry > Basic Synthetic Reagents > Inorganic Compounds and Metal Salts

Product Description:

Ferric oxide (Fe_O_, CAS 1309-37-1) is the most common inorganic compound of iron, existing in several polymorphs such as ж┴-Fe_O_ (hematite), ж├-Fe_O_ (maghemite), and ж┬-Fe_O_. It is a reddish-brown to black solid, insoluble in water, and widely used as a precursor for synthesizing various iron-based functional nanomaterials, including magnetic nanoparticles, catalysts, and pigments. Its primary applications are in the materials and industrial sectors. As a key precursor in materials chemistry, it is used to produce ferrites, magnetic recording media, and polishing agents for glass and metals. In the functional chemicals domain, it serves as a major inorganic pigment (Pigment Red 101 and Pigment Brown 6) for paints, coatings, plastics, and construction materials, providing color and UV protection. It is also employed as a catalyst in chemical reactions, such as the Haber-Bosch process and water-gas shift reactions, and as a raw material for steelmaking and thermite welding.

Physical Properties

Melting Point: 1538°C

Flash Point: >230 °F

Density: 5.24

Solubility: insoluble in water

Analytical Data

Appearance: red to reddish-brown powder