Molekula
Iron(iii) oxide red, purified
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Iron(III) oxide red, purified (CAS 1309-37-1) is a high-purity, red pigment and oxidizing agent widely used in ceramics, coatings, and polishing compounds for its color stability and inertness. It has a molecular formula of Fe₂O₃ and a molecular weight of 159.69 g/mol, stored safely at ambient conditions. Classified with a signal word of *Warning*, it requires standard handling precautions. Molekula supplies Iron(III) oxide red, purified from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | Powder |
| Purity | ≥99.5% |
| Particle Size | 300nm |
| Identification (IR) | Conforms to reference |
| Calcium (Ca) | ≤0.05% |
| Magnesium (Mg) | ≤0.02% |
| Potassium (K) | ≤0.05% |
| Nickel (Ni) | ≤0.01% |
| Cobalt (Co) | ≤0.02% |
| Aluminium (Al) | ≤0.05% |
| Silicon (Si) | ≤0.02% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Reddish-brown hexagonal crystals |
| Melting Point | 1539 °C |
| Density | 5.25 g/cm³ |
| Solubility (other solvents) | Soluble in acids; insoluble in water, alcohol, ether |
| Vapour Pressure | 0 mmHg (approximate) |
Source: PubChem CID 518696 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 26035791 |
| CAS Number | 1309-37-1 |
| IUPAC Name | oxo(oxoferriooxy)iron |
| Molecular Formula | Fe2O3 |
| Molecular Weight | 159.69 |
| Exact Mass | 159.8546 |
| SMILES | O=[Fe]O[Fe]=O |
| InChIKey | JEIPFZHSYJVQDO-UHFFFAOYSA-N |
| InChI | InChI=1S/2Fe.3O |
| PubChem CID | 518696 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2821.10.0020 |
| Tariff Code | 2821100000 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Anhydrous Ferric Oxide
- Anhydrous Iron (III)
- Anhydrous Iron (III) Oxide
- Ferrum Oxydatum
- Hematite 8124
- iron (III) oxide
- Iron oxide,
- Iron oxide, red
- Iron trioxide
- iron(3+) oxide
Frequently asked questions
What is Iron(III) oxide red, purified commonly used for?
It is primarily used as a pigment in paints, coatings, plastics, and cosmetics for its red color, as well as in polishing compounds, catalysts, and magnetic applications.
What is the chemical formula and molecular weight of Iron(III) oxide red?
The chemical formula is **Fe₂O₃**, and the molecular weight is **159.69 g/mol**.
What is the hazard classification (Signal word) for this product?
The product has a **Signal word of 'Warning'** as per GHS classification, indicating moderate hazards.
How should Iron(III) oxide red be stored?
Store in a cool, dry place at **ambient temperature**, away from moisture and incompatible substances.
Does Molekula offer this product in bulk quantities?
Yes, Molekula can supply Iron(III) oxide red in bulk, with quantities tailored to your requirements.
What documentation is provided with an order of this product?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.