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Ferric oxide

Also known as: EINECS 215-168-2, Ferric oxide(II,III), magnetic nanoparticles solution, Ferric sesquioxide, Ferric(III) oxide, Iron oxide in, Iron oxide(II,III), Iron(III) oxide, Iron(III) oxide, 98% trace metals basis, Iron(III) oxide, 99% trace metals basis, Iron(III) oxide, 99.9% trace metals basis, Iron(III) oxide, 99.95% trace metals basis, Iron(III) oxide, 99.99% trace metals basis, Iron(III) oxide,-100 mesh,(trace metal basis), Iron(lll) oxide, MFCD00748135, ferric oxide

Ferric oxide (CAS 1309-37-1) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Fe2O3 and a molecular weight of 159.69 g/mol. Key properties include a melting point of 1538ºC, a density of 5.24 and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour and H318 — Causes serious eye damage. It is listed by 2 suppliers, 1 of which publish reference prices, from 0.05 to 520.00 CNY. Record last updated Nov 3, 2026.

CAS No.
1309-37-1
Jingsj CID
J-40090-3
Molecular Formula
Fe2O3
Molecular Weight
159.69 g/mol
Category
Inorganic Chemicals
Last updated
11/3/2026
In StockHigh Purity

Supplier Offers

2Request a quote
Filter:
SupplierPurity / PackBase PriceUnit PriceOrigin
In Stock
AR
500g
¥24.00
$0.01 /gBest
¥0.05/g CNY
CN China
MOQ 500g
In Stock
GR
500g
¥50.00
$0.01 /g
¥0.10/g CNY
CN China
MOQ 500g
In Stock
99.90%
500g
¥320.00
$0.1 /g
¥0.64/g CNY
CN China
MOQ 500g

Physicochemical Properties

Melting Point1538ºC
Density5.24
Flash Point>110.0 °C
Exact Mass159.854630
PSA43.37000
Additional PropertyINSOLUBLE

GHS Safety & Compliance

Flammable / CorrosionSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H318 — Causes serious eye damage

Activity & Biological Data

Additional Information[1]. Elder DP, et al. Pharmaceutical excipients - quality, regulatory and biopharmaceutical considerations. Eur J Pharm Sci. 2016 May 25;87:88-99.

Customs & Trade Information

HS Code2821100000

Frequently Asked Questions

What is the CAS number of Ferric oxide?

The CAS number of Ferric oxide is 1309-37-1.

What are the molecular formula and molecular weight of Ferric oxide?

Ferric oxide has molecular formula Fe2O3 and molecular weight 159.69 g/mol.

Which suppliers offer Ferric oxide?

2 supplier(s) listed; reference unit price ¥0.05–520.00 /g.

Is Ferric oxide hazardous?

Ferric oxide has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H318 — Causes serious eye damage.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Ferric oxide (CAS 1309-37-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40090-3 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.