Molekula
Iron(III) oxide hydrate
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 hydrate is a reddish-brown powder used in catalysis, pigment production, and as a precursor in materials science. It also serves as an ion exchange agent. It is available in research and bulk quantities. CAS: 20344-49-4, Molecular Formula: Fe(OH)O, Molecular Weight: 88.85 g/mol, Storage: Ambient, Signal Word: None. Molekula supplies Iron(III) oxide hydrate 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.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Yellow powder |
| pH | 3.5-7 |
| Fe2O3 | ≥85% |
| Oil Absorption | 25-35g/100g |
| Water soluble matter | ≤0.5% |
| Colour Shade | ≤0.7∆E |
| Residue on 325 Mesh sieve (Wet method) | ≤0.3% |
| Tint Strength | 98% - 103% |
| Volatile Matter (105℃) | ≤1.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 89984225 |
| CAS Number | 20344-49-4 |
| IUPAC Name | iron(3+);oxygen(2-);hydroxide |
| Molecular Formula | Fe(OH)O |
| Molecular Weight | 88.85 |
| Exact Mass | 88.9326 |
| SMILES | [OH-].[O-2].[Fe+3] |
| InChIKey | IEECXTSVVFWGSE-UHFFFAOYSA-M |
| InChI | InChI=1S/Fe.H2O.O/h;1H2;/q+3;;-2/p-1 |
| PubChem CID | 9793696 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 28211000 |
| Tariff Code | 2821100000 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, 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
No alternate names recorded for this product.
Frequently asked questions
What is Iron(III) oxide hydrate used for?
It is commonly used as a pigment in coatings, ceramics, and cosmetics due to its red-brown color and stability.
What is the chemical formula and molecular weight of Iron(III) oxide hydrate?
The formula is Fe(OH)O and the molecular weight is 88.85 g/mol.
How should Iron(III) oxide hydrate be stored?
It should be stored at ambient temperature, protected from moisture and direct sunlight.
What grade of Iron(III) oxide hydrate is available?
Available in technical grade; custom grades may be available upon request.
Can Molekula supply Iron(III) oxide hydrate in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with an order of Iron(III) oxide hydrate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.