ChemicalBook > CAS DataBase List > IRON (II) OXIDE

IRON (II) OXIDE

Product Name: IRON (II) OXIDE
CAS No.: 1345-25-1
Chemical Name: IRON (II) OXIDE
Synonyms: FeO;CI 77489;FERROUS OXIDE;OFE;ODFR;OSTS;PDB2;CD265;OPTB7;TRANCER
CBNumber: CB6715199
Molecular Formula: FeO
Formula Weight: 71.84
MOL File: 1345-25-1.mol

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IRON (II) OXIDE Property

Melting point:

1369°C

Density

5.7 g/mL at 25 °C(lit.)

solubility

insoluble in H2O, alkaline solutions; soluble in acid solutions

form

5 Mesh

color

black cubic crystals, crystalline

Water Solubility

Insoluble in water and alkalies. Soluble in HCl, H{2}SO{4}. Slightly soluble in HNO{3}Insoluble in water, alcohol and alkali. Soluble in hydrochloric acid and sulfuric acid. Slightly soluble in nitric acid.

Sensitive

Air Sensitive

Crystal Structure

NaCl type

crystal system

Cube

Merck

14,4052

Space group

Fm3m

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.4326	0.4326	0.4326	90	90	90	0.081

Dielectric constant

14.2（16.0℃）

Stability:

Stable. Incompatible with strong oxidizing agents. Highly flammable.

CAS DataBase Reference

1345-25-1(CAS DataBase Reference)

EPA Substance Registry System

Ferrous oxide (1345-25-1)

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Safety

Hazard Codes: F
Risk Statements: 11
Safety Statements: 16-33-7/9
RIDADR: UN 3178 4.1/PG 2
OEB: B
OEL: TWA: 5.0 mg/m3
WGK Germany: -
TSCA: Yes
Hazardous Substances Data: 1345-25-1(Hazardous Substances Data)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 400866
Product name: Iron(II) oxide
Purity: 10 mesh, 99.7% trace metals basis
Packaging: 5g
Price: $104
Updated: 2025/07/31

Sigma-Aldrich

Product number: 400866
Product name: Iron(II) oxide
Purity: 10 mesh, 99.7% trace metals basis
Packaging: 25g
Price: $333
Updated: 2025/07/31

American Custom Chemicals Corporation

Product number: ING0004365
Product name: IRON (II) OXIDE
Purity: 95.00%
Packaging: 25G
Price: $1114.52
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: ING0004365
Product name: IRON (II) OXIDE
Purity: 95.00%
Packaging: 500G
Price: $4268.88
Updated: 2021/12/16

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IRON (II) OXIDE Chemical Properties,Usage,Production

Description

When iron is heated in a low partial pressure of oxygen above 575°C, FeO is formed. However, this is only stable at high temperatures and decomposes into iron and Fe304 when it is cooled slowly. To obtain crystalline FeO the high temperature product must be quenched rapidly to stop this disproportionation.

Chemical Properties

Crystalline FeO (wustite) melts at 1368°C with a heat of fusion ΔH= 7·5 kcal mole^-1. It has a heat of formation of - 63·7 kcal mole^-1 at 25° and a density of 5·7. Below 198°K (the Néel temperature) FeO is antiferromagnetic. It crystallizes with the rock salt structure having four Fe2+ and four0^2- ions per unit cell.

Chemical Properties

solid

Physical properties

Black cubic crystal; density 5.7g/cm³; melts at 1,377°C; insoluble in water and alkalies; dissolves in acids.

Occurrence

Iron(II) oxide occurs in the mineral, wustite. It is used in the manufacture of heat-absorbing green glasses. It also is used in ceramic mixtures and enamels; and as a catalyst.

Uses

In manufacture of green, heat-absorbing glass; in steel manufacture; in enamels; as catalyst.

Uses

In manufacture of green, heat-absorbing glass; in steel manufacture; and as a catalystIron(II) oxide is used in manufacturing of green, heat-absorbing glass; in steel manufacture; and as a catalyst. It is used as a dye or pigment in pottery, glazes and glasses. It finds application as heat-absorbing glass used in buildings and automobiles. It is used as a precursor in the production of steel. It is also used in cosmetics and some tattoo inks. It can also be used for filtering phosphates from home aquaria and acts as a catalyst in a number of industrial and chemical operations.

Definition

ChEBI: Ferrous oxide is an iron oxide.

Preparation

Iron(II) oxide may be prepared by thermal decomposition of iron(II) oxalate:
FeC₂O₄ → FeO + CO + CO₂
The product obtained above is impure, that may contain small quantities of triiron tetroxide, Fe3O4 and carbon.
The oxide is stable above 575°C. Thus, it can be prepared by heating iron with oxygen under appropriate pressure at 575°C. Also, iron(II) oxide has been prepared by saturating the fused triiron tetroxide with iron, powdering the mixture, followed by magnetic separation of the oxide from excess iron (Sidgwick, N.V. 1950. The Chemical Elements and Their Compounds, Vol.2, pp 1328, Oxford: Clarendon Press).

IRON (II) OXIDE Preparation Products And Raw materials

Raw materials

Preparation Products

Sodium thiocyanate Iron oxide black

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View Lastest Price from IRON (II) OXIDE manufacturers

Shaanxi Dideu New Materials Co. Ltd

Product: IRON (II) OXIDE 1345-25-1
Price: US $0.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 10000KGS
Release date: 2025-03-15

Career Henan Chemical Co

Product: IRON (II) OXIDE 1345-25-1
Price: US $6.60/KG
Min. Order: 500g
Purity: 98%
Supply Ability: 1kg, 50kg, 100kg
Release date: 2019-12-25

1345-25-1, IRON (II) OXIDERelated Search:

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CI 77489

IRON(II) OXIDE, -10 MESH, 99.9%

Iron(II)oxide,99.5%(metalsbasis)

Ferrous(ic)Oxide

iron monoxide

Iron(II) oxide -10 Mesh, 99.9% trace Metals basis

Iron(II) oxide, 99.5% trace metals basis, may contain trace amounts of other phases

FERROUS OXIDE

IRON(+2)OXIDE

IRON (II) OXIDE

ci77489[qr]

FeO

Glassite

Glossite

Iron oxide (FeO)

Iron(Ⅱ) Oxide

Ferrous oxide, 99.5%

Iron oxide (II)

CD265

LOH18CR1

ODFR

OFE

OPTB7

Osteoclast differentiation factor receptor

OSTS

PDB2

Receptor activator of NF-KB

TRANCER

Iron(II) Oxide (FeO)

1345-25-1

FeOmaycontaintraceamountsofotherphases

Inorganic Chemicals

Inorganics

Metal and Ceramic Science

Oxides