Magnetite
Also known as: 11557black, EINECS 235-442-5, FERRISPEC(R) PL BLACK IRON OXIDE, FERRISPEC(TM) GC, FERROUS(IC) OXIDE BLACK, FERROUS/FERRIC OXIDE, Iron oxide black, Triiron(II,III) tetraoxide, hydroxy(keto)iron, hydroxy(oxo)iron, IRON PIGMENT BLACK (E172)
Magnetite (CAS 1309-38-2) 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 231.53 g/mol. Key properties include a melting point of 1538 °C(lit.) and a density of 4.8-5.1 g/mL at 25 °C(lit.). It is listed by 2 suppliers, 1 of which publish reference prices, from 9.36 to 23.60 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 1309-38-2
- Jingsj CID
- J-1604706-4
- Molecular Formula
- Fe3O4
- Molecular Weight
- 231.53 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | 98% 25mg | ¥234.00 | $1.4 /mgBest ¥9.36/mg CNY | CN China MOQ 25mg | |
In Stock | 98% 10mg | ¥158.00 | $2.36 /mg ¥15.80/mg CNY | CN China MOQ 10mg | |
In Stock | 98% 5mg | ¥118.00 | $3.53 /mg ¥23.60/mg CNY | CN China MOQ 5mg |
Physicochemical Properties
| Melting Point | 1538 °C(lit.) |
|---|---|
| Density | 4.8-5.1 g/mL at 25 °C(lit.) |
| Appearance | powder |
Frequently Asked Questions
What is the CAS number of Magnetite?
The CAS number of Magnetite is 1309-38-2.
What are the molecular formula and molecular weight of Magnetite?
Magnetite has molecular formula Fe3O4 and molecular weight 231.53 g/mol.
Which suppliers offer Magnetite?
2 supplier(s) listed; reference unit price ¥9.36–23.60 /mg.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Magnetite (CAS 1309-38-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1604706-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.