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Merck

637106

Sigma-Aldrich

Eisen(II,III)-oxid

nanopowder, 50-100 nm particle size (SEM), 97% trace metals basis

Iron(II,III) oxide

Synonym(e):

Ferrosoferric oxide, Iron oxide black, Magnetite

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About This Item

Empirische Formel (Hill-System):
Fe3O4
CAS Number:
Molekulargewicht:
231.53
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352302
PubChem Substanz-ID:
NACRES:
NA.23

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Assay

97% trace metals basis

Form

nanopowder
spherical

Oberflächenbereich

6-8 m2/g , estimated

Partikelgröße

50-100 nm (SEM)

mp (Schmelzpunkt)

1538 °C (lit.)

Dichte

4.8-5.1 g/mL at 25 °C (lit.)

Schüttdichte

0.84 g/mL

Anwendung(en)

battery manufacturing

SMILES String

O=[Fe].O=[Fe]O[Fe]=O

InChI

1S/3Fe.4O

InChIKey

SZVJSHCCFOBDDC-UHFFFAOYSA-N

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Dieser Artikel
518158700312725331
form

nanopowder, spherical

form

powder

form

nanoparticles, solution

form

dispersion, nanoparticles

particle size

50-100 nm (SEM)

particle size

-

particle size

9-11 nm (TEM; conforms)

particle size

4-6 nm (TEM)

assay

97% trace metals basis

assay

99.99% trace metals basis

assay

-

assay

-

mp

1538 °C (lit.)

mp

1538 °C (lit.)

mp

-

mp

-

density

4.8-5.1 g/mL at 25 °C (lit.)

density

4.8-5.1 g/mL at 25 °C (lit.)

density

0.865 g/mL at 25 °C

density

1.00 g/mL at 25 °C

surface area

6-8 m2/g , estimated

surface area

-

surface area

-

surface area

-

Allgemeine Beschreibung

Eisen(II,III)-oxid-Nanopulver ist ein feines Pulver aus Eisenoxidpartikeln mit einer Größe im Bereich von 50–100 nm. Es ist auch als Trieisentetraoxid bekannt. Eisen(II,III)-oxid ist ein rotbraunes, magnetisches Material, das stabil und chemisch inert ist. Es wird verbreitet als Pigment in Farben, Beschichtungen und Keramik verwendet, eignet sich aber auch als Katalysator in vielen chemischen Reaktionen. In Nanopulverform weist dieses Eisen(II,III)-oxid eine große Oberfläche auf, was es zu einem wirksamen Katalysator macht.

Anwendung

Eisen(II,III)oxid (Fe3O4) eignet sich als heterogener Katalysator für die Fenton-artige Oxidation von Rhodamin B.[1] Es kann auch als Anodenmaterial für die Herstellung von Lithium-Ionen-Akkus verwendet werden.[2] Fe3O4 kann auch bei der Katalyse der Sauerstoffreduktionsreaktion (ORR) in der Anionenaustausch-Membran-Brennstoffzelle verwendet werden.[3]

Hinweis zur Analyse

XRD-Bild ist nur repräsentativ und nicht chargenspezifisch.

Lagerklassenschlüssel

11 - Combustible Solids

WGK

nwg

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves


Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number

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Questions

1–10 of 11 Questions  
  1. Is it possible to coat these nanoparticles with Oleic acid? What are the key considerations for coating them?

    1 answer
    1. It is possible to coat this product with oleic acid. Key considerations during the coating process include surface interactions, concentration of oleic acid, dispersion media, coating method, and characterization. Consulting relevant literature is recommended for detailed guidance.

      Helpful?

  2. Is this material safe to load in furnace at 600℃ in Ar atmosphere with polymer?

    1 answer
    1. Yes, this product is thermally stable at 600℃ in Ar atmosphere. However, the stability may further depend on the specific type of polymer being used.

      Helpful?

  3. What is the specific surface area of product 637106 Iron (II,III) oxide ?

    1 answer
    1. As mentioned in the 'PROPERTIES' section above, this material as an estimated surface area of 6-8 m2/g.

      Helpful?

  4. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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

      Helpful?

  5. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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/449/386/product-dating-information-mk.pdf

      Helpful?

  6. what is the Iron concentration in ug/ul of Product 637106?

    1 answer
    1. This product is in powder form. The density is 4.8-5.1 g/mL at 25 °C (lit.), with an average of 4.95 g/mL. The iron content is tested on a lot-to-lot basis. For lot# MKCV7594, the iron content is 66.5%, and the purity is 97%. Therefore, the iron concentration is calculated as 4.95 x 66.5% x 97% = 3.19 g/mL = 3190 µg/µL.

      Helpful?

  7. Does this product have paramagnetic properties?

    1 answer
    1. The paramagnetic properties of this product have not been determined.

      Helpful?

  8. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      Helpful?

  9. How can the nanopowder Iron(II,III) oxide, Product 637106, be dispersed in an aqueous solution?

    1 answer
    1. 1. It is recommended to use a neutral buffered solution (approximately pH 7). The pH of the solution is an important factor in achieving a monodispersion of the nanopowder.2. Probe-type ultrasonication is strongly recommended by the manufacturer.3. If the material is not well dispersed by ultrasonication in a neutral buffer, add a surfactant. This will wet the nanoparticle surface. Since the particles are small (less than 50 nm), they have a high surface area to volume ratio. They can therefore absorb gases such as oxygen or carbon dioxide from the air, which would decrease the dispersity of the particles. Degassing the buffer before use may help to eliminate the formation of gas bubbles.

      Helpful?

  10. Is Product 637106, Iron(II,III) oxide, stabilized (coated)?

    1 answer
    1. No, product 637106 has not been coated on the surface per the supplier.

      Helpful?

1–10 of 11 Questions  

Reviews

Active Filters

    • Review 1
    • Votes 2
    1 out of 5 stars.

    not upto the mark

    not upto the mark. Not in size range and powder is solubility is not known

    Helpful?

    1. Response from Merck KGaA:

      Thank you for reaching out and sharing your review with us. The particle size for this product is confirmed by scanning electron microscopy. While we do not test the product for solubility, it is reportedly soluble in acids. We would like to learn more about your experience so that we can make sure it is meeting your expectations. When you have a moment, please contact us by visiting https://www.sigmaaldrich.com/support/customer-support and submitting a Product Technical Inquiry. We hope to hear from you soon!

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