If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
529311
Iron(III) oxide
≥99.995% trace metals basis
Synonym(s):
Ferric oxide
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
5 g | Check Cart for Availability | $117.00 |
25 g | Check Cart for Availability | $288.00 |
250 g | Estimated to ship onNovember 23, 2026 | $943.00 |
About This Item
$117.00
Quality Segment
assay
≥99.995% trace metals basis
form
powder
composition
Fe₂O₃
reaction suitability
core: iron
application(s)
battery manufacturing
catalysts
glass & ceramic
SMILES string
O=[Fe]O[Fe]=O
InChI
1S/2Fe.3O
InChI key
JEIPFZHSYJVQDO-UHFFFAOYSA-N
General description
Application
1 of 1
This Item | |
|---|---|
| description ≥99.995% trace metals basis | description nanoparticles, ≤110 nm particle size, 15 wt. % in ethanol |
| form powder | form nanoparticles |
| assay ≥99.995% trace metals basis | assay - |
| Quality Level 100 | Quality Level 200 |
| application(s) battery manufacturing | application(s) catalysts |
| composition Fe₂O₃ | composition - |
| reaction suitability core: iron | reaction suitability - |
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Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
dust mask type N95 (US), Eyeshields, Gloves
Storage Class
11 - Combustible Solids
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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Do you know what is the size of this Fe2O3 powder with > 99.995% trace metal basis?
1 answer-
Unfortunately, the particle size of this product has not been determined.
Please see the links below to review other Iron)III) Oxide product options that do offer a particle size.310050, Iron(III) Oxide, <5 um
https://www.sigmaaldrich.com/product/sigald/310050544884, Iron(III) Oxide, <50 nm
https://www.sigmaaldrich.com/US/en/product/aldrich/544884720712, Iron(III) Oxide, dispersion, <110 nm, 15% in EtOH
https://www.sigmaaldrich.com/US/en/product/aldrich/720712Helpful?
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