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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
Iron(III)oxide

Inventory

EC number:
215-168-2
EC name:
Diiron trioxide
CAS number:
1309-37-1
CAS number:
1309-37-1
Synonyms
Names:
C.I. 77491
C.I. Pigment Red 101
Copperas red
Diiron trioxide
Ferric oxide
Iron oxide (Fe2O3)
Iron oxide red
Iron(III)oxide
Red iron oxide
Identifier:
IUPAC name
diiron trioxide
Identifier:
other: SMILES notation
O1[Fe]2O[Fe]1O2

Molecular and structural information

Molecular formula:
Fe2O3
Molecular weight:
159.69
SMILES notation:
not applicable
InChl:
InChI=1/2Fe.3O/rFe2O3/c3-1-4-2(3)5-1
Structural formula:
Chemical structure

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