Iron(II) oxide

CAS 1345-25-1FeOMetal & Ceramic Science

Iron(II) oxide (CAS: 1345-25-1, FeO, MW: 71.84) is a black to grey powder. This high-purity material, assaying 99.9% trace metals basis with limited free iron content, serves as a crucial precursor in advanced material synthesis. Its applications include the preparation of novel mixed-valence iron compounds, making it valuable for research and development in materials science and inorganic chemistry.

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Iron(II) oxide (FeO) — chemical structure, CAS 1345-25-1; Materials Science, fine chemical supplied by Tech Serve Solutions

26: FeIronMagnetic MaterialsMagnetic PrecursorsMaterials ScienceMetal and Ceramic ScienceOxides More...

01 /Applications

Precursor for Mixed-Valence Compounds

Iron(II) oxide is employed in the synthesis of specific mixed-valence ammonium iron phosphates, such as NH₄Fe₂(PO₄)₂. This application highlights its utility in creating advanced inorganic materials with unique electronic properties.

Magnetic Materials Research

As a precursor for magnetic materials, Iron(II) oxide is relevant in the development and study of magnetic compounds. Its properties contribute to research in areas requiring precise magnetic characteristics.

Inorganic Synthesis

This compound is a fundamental reagent in inorganic chemistry for the synthesis of various iron-containing materials. Its defined purity ensures reliable outcomes in complex chemical preparations.

02 /Properties

Molecular weight	71.84
Empirical formula	FeO
Assay	99.9% trace metals basis
Form	powder
Density	5.7 g/mL at 25 °C(lit.)
Particle size	−10 mesh
Impurities tested	≤5% free iron
Application	Employed in the synthesis of the first example of a mixed-valence ammonium iron phosphate, NH4Fe2(PO4)2.1

03 /Safety & handling

GHS hazard pictogram: Flammable (GHS02) — Flammable

Warning

Hazard statements

H228Flammable solid

Transport (UN / ADR)	UN 3178 4.1 / PGII
Water hazard class (WGK, DE)	nwg
Hazard codes (EU)	F
Risk statements (R)	11
Safety statements (S)	7/9-16-33

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

1345-25-1

MDL number

MFCD00016095

PubChem substance

24864959

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Iron(II) oxide used for?

Iron(II) oxide is used as a precursor in the synthesis of advanced materials, particularly in the preparation of mixed-valence ammonium iron phosphates and other magnetic materials for research and development.

What are the CAS number and formula for Iron(II) oxide?

The CAS number for Iron(II) oxide is 1345-25-1, and its chemical formula is FeO.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Iron(II) oxide with an assay of 99.9% trace metals basis. TSS does not represent this product as USP, BP, or EP grade.

How should Iron(II) oxide be handled safely?

Iron(II) oxide is a flammable solid (H228). Handle with appropriate precautions to avoid ignition sources. Refer to the Safety Data Sheet for comprehensive handling and safety information.