Iron(II,III) oxide
Also known as: EINECS 215-277-5, Fe NP COOH,FexOy,Magnetic iron oxide nanocrystals, Fe NP NH2,FexOy,Magnetic iron oxide nanocrystals, Iron oxide (Fe3O4), Iron oxide(II,III), Iron oxide(II,III),magnetic nanoparticles, Iron(II) diiron(III) oxide, Iron(II,III)oxide, MFCD00011010, Magnetic iron oxide nanocrystals,Magnetite,Superparamagnetic iron oxide nanoparticles, Monodispersed magnetite microspheres, ferrosoferric oxide
Iron(II,III) oxide (CAS 1317-61-9) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Fe3O4-- and a molecular weight of 231.533 g/mol. Key properties include a melting point of 1538 °C(lit.), a density of 4.8-5.1 g/mL at 25 °C(lit.) and a flash point of 7 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H304 and H315 — Causes skin irritation. It is listed by 2 suppliers, 1 of which publish reference prices, from 0.07 to 560.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 1317-61-9
- Jingsj CID
- J-1990137-0
- Molecular Formula
- Fe3O4
- Molecular Weight
- 231.533 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | AR 500g | ¥35.00 | $0.01 /gBest ¥0.07/g CNY | CN China MOQ 500g | |
In Stock | 99% 500g | ¥98.00 | $0.03 /g ¥0.20/g CNY | CN China MOQ 500g | |
In Stock | 100-300nm 250g | ¥145.00 | $0.09 /g ¥0.58/g CNY | CN China MOQ 250g |
Physicochemical Properties
| Melting Point | 1538 °C(lit.) |
|---|---|
| Density | 4.8-5.1 g/mL at 25 °C(lit.) |
| Flash Point | 7 °C |
| Exact Mass | 231.784485 |
| Refractive Index | 3.0 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H304
- H315 — Causes skin irritation
- H336 — May cause drowsiness or dizziness
- H373 — May cause damage to organs through prolonged exposure
- H411 — Toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2821100000 |
|---|
Frequently Asked Questions
What is the CAS number of Iron(II,III) oxide?
The CAS number of Iron(II,III) oxide is 1317-61-9.
What are the molecular formula and molecular weight of Iron(II,III) oxide?
Iron(II,III) oxide has molecular formula Fe3O4-- and molecular weight 231.533 g/mol.
Which suppliers offer Iron(II,III) oxide?
2 supplier(s) listed; reference unit price ¥0.07–560.00 /g.
Is Iron(II,III) oxide hazardous?
Iron(II,III) oxide has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H304; H315 — Causes skin irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Iron(II,III) oxide (CAS 1317-61-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990137-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.