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Sigma-Aldrich

Iron

≥99%, reduced, powder (fine)

Synonym(s):

Fe

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About This Item

Linear Formula:
Fe
CAS Number:
7439-89-6
Molecular Weight:
55.85
EC Number:
231-096-4
MDL number:
MFCD00010999
UNSPSC Code:
11101713
PubChem Substance ID:
57646982
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

200

Assay

≥99%

form

powder (fine)

quality

reduced

reaction suitability

core: iron
reagent type: catalyst

resistivity

9.71 μΩ-cm

impurities

≤0.5% insoluble in HCl

bp

2750 °C (lit.)

mp

1535 °C (lit.)

density

7.86 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤20 mg/kg
sulfide (S2-): ≤100 mg/kg

cation traces

As: ≤5 mg/kg
Cu: ≤100 mg/kg
Mn: ≤1000 mg/kg
Ni: ≤500 mg/kg
Pb: ≤20 mg/kg
Zn: ≤50 mg/kg

SMILES string

[Fe]

InChI

1S/Fe

InChI key

XEEYBQQBJWHFJM-UHFFFAOYSA-N

Related Categories

General description

Reduced iron powder, also known as iron sponge, is a fine powdered form of iron that is commonly used in chemical synthesis processes. It is produced by the reduction of iron oxide in a controlled environment, typically through the use of hydrogen or carbon monoxide gas.




In chemical synthesis, reduced iron powder can be employed as a reducing agent, catalyst, or precursor in a wide range of reactions. It is commonly used to convert organic functional groups, such as aldehydes, ketones, and nitro compounds, into their corresponding reduced forms. It is also known to facilitate hydrogenation reactions.




Reduced iron powder finds applications in the production of iron-based catalysts, magnetic materials, pigments, and metal alloys. It is commonly used in pharmaceutical synthesis, organic chemistry, and industrial manufacturing. It is important to handle reduced iron powder with care due to its potential reactivity with moisture and oxygen, which may cause oxidation and result in changes to its properties. Proper storage and handling procedures should be followed to maintain its quality and prevent unwanted reactions.

Application

  • Sodium-Ion Batteries: Research demonstrated the use of iron-based Na(4)FeV(PO(4))(3) nanoparticles in pine pollen derived carbon matrices as a cost-effective cathode for sodium-ion batteries, emphasizing sustainable energy solutions and materials chemistry (Wang et al., 2024).

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H228,H251

Hazard Classifications

Flam. Sol. 1 - Self-heat. 1

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
STBL4546
STBL1500
STBK7775
STBK6817
STBK6816

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Elzbieta Krzesiek et al.
Polski merkuriusz lekarski : organ Polskiego Towarzystwa Lekarskiego, 34(203), 289-292 (2013-07-31)
Anemia is a frequent symptom of diseases of alimentary tract, also in children. Among others, inflammatory bowel disease, celiac disease and Helicobacter pylori are most often complicated by anemia. Not infrequently these disorders are accompanied by more than one type
Stanley Zlotkin et al.
JAMA, 310(9), 938-947 (2013-09-05)
In sub-Saharan Africa, malaria is a leading cause of childhood morbidity and iron deficiency is among the most prevalent nutritional deficiencies. In 2006, the World Health Organization and the United Nations Children's Fund released a joint statement that recommended limiting
Shaun D Wong et al.
Nature, 499(7458), 320-323 (2013-07-23)
Mononuclear non-haem iron (NHFe) enzymes catalyse a broad range of oxidative reactions, including halogenation, hydroxylation, ring closure, desaturation and aromatic ring cleavage reactions. They are involved in a number of biological processes, including phenylalanine metabolism, the production of neurotransmitters, the
Iron fortification and malaria risk in children.
Andrew M Prentice et al.
JAMA, 310(9), 914-915 (2013-09-05)
N M Makarova et al.
Klinicheskaia laboratornaia diagnostika, (1)(1), 42-44 (2013-07-03)
The sample for examination included 52 patients with chronic cardiac failure and 26 patients with anemia amongst. The expected increase of production of prohepsidin against the background of increased serum concentrations of anti-inflammatory cytokines was not detected. The tendency to
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Questions

1–3 of 3 Questions  

  1. 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?

  2. 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?

  3. ¿Cuál es el tamaño de partícula máxima?

    1 answer

    1. The particle size distribution is as follows:

      >212µm = 0%
      150µm- 212µm = 10%
      45µm-150µm = 65-85%
      <45µm = 5-25%

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