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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:
12161600
PubChem Substance ID:
57646982
NACRES:
NA.22

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

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

signalword

Danger

hcodes

H228,H251

Hazard Classifications

Flam. Sol. 1 - Self-heat. 1

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
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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
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Understanding how Hofmeister salt ions and other solutes interact with proteins, nucleic acids, other biopolymers and water and thereby affect protein and nucleic acid processes as well as model processes (e.g. solubility of model compounds) in aqueous solution is a
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