Iron

Description

Iron is identified by CAS 7439-89-6, molecular formula Fe and molecular weight 55.84 g/mol. UNII E1UOL152H7; ChEBI 18248; InChIKey XEEYBQQBJWHFJM-UHFFFAOYSA-N. Boiling Point: 2,861 °C; Boiling Point: 288 °F; Boiling Point: 2861 °C @760 [mm Hg].

Identification

CAS Registry Number	7439-89-6
PubChem CID	23925
Molecular formula	Fe
Molecular weight	55.84 g/mol
IUPAC name	iron
InChIKey	XEEYBQQBJWHFJM-UHFFFAOYSA-N
UNII (FDA)	E1UOL152H7
ChEBI ID	CHEBI:18248

Computed Descriptors

Molecular Weight	55.84
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	55.934936
Monoisotopic Mass	55.934936
Topological Polar Surface Area	0
Heavy Atom Count	1
Formal Charge	0
Complexity	0

Physical & Chemical Properties

Boiling Point	2,861 °C
Boiling Point	288 °F
Boiling Point	2861 °C @760 [mm Hg]
Melting Point	1538
Melting Point	1,538 °C
Melting Point	1538 °C
Density	7.87 g/cu cm
Density	7.87 @25 °C

Physical description & handling notes

• Iron, [powdered] appears as a gray lustrous powder. Used in powder metallurgy and as a catalyst in chemical manufacture.
• Dry Powder; Other Solid; Dry Powder; Large Crystals; Large Crystals; Dry Powder; Wet Solid; Other Solid; CBI; Large Crystals; Other Solid; Dry Powder; Other Solid; Wet Solid
• Gray metallic, pyrophoric powder; [CAMEO]
• Appearance and odor vary depending upon the specific soluble iron salt.
• Silvery-white or gray, soft, ductile, malleable metal ... In powder form it is black to gray
• Cubic crystal system. Body-centered cubic structure

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: NUTRIENT SUPPLEMENT METALS: Food Contaminant TRS 696-JECFA 27/29 FAS 18-JECFA 27/203
GHS notification summary	74.1% (4458 / 6013)

GHS Hazard Classification

GHS notification summary	74.1% (4458 / 6013)
Reported hazard statements	H228 (15.5%), H251 (21.2%), H319 (100%), H335 (100%)

Documented Uses

• Iron powder is used in metallurgy and as a catalyst in manufacturing; [CAMEO] Used to treat anemia and as a dietary supplement in pregnancy; [Olson, p. 277] Iron nanoparticles include the fine needles used in magnetic recordings; Magnetic iron oxide nanoparticles have biomedical applications including targeted drug delivery and MRI imaging (Feridex); [HSDB]
• Smelting Copper or Lead [Category: Industry]
• Metal Extraction and Refining [Category: Industry]
• In manufacture of iron and steel castings (pig iron), of alloys with carbon, chromium, and other metals; as a material to increase density of oil well drilling fluids.
• Alloyed with carbon, manganese, chromium, nickel and other elements to form steels ...
• Catalysts for ammonia synthesis

Synonyms

IRON; 7439-89-6; Iron powder; Iron, elemental; ferrous iron; Remko; iron metal; Armco iron; Ferrovac E; Hoeganaes EH; 3ZhP; Ancor B; Atomiron 5M; PZhO; Atomiron 44MR; hierro

Frequently Asked Questions

What are the CAS number and molecular formula of Iron?

CAS 7439-89-6; molecular formula Fe; molecular weight 55.84 g/mol.

What other names is Iron known by?

IRON, 7439-89-6, Iron powder, Iron, elemental, ferrous iron, Remko.

What is the regulatory status of Iron?

Documented regulatory listings: FDA Substance added to food: NUTRIENT SUPPLEMENT; METALS: Food Contaminant; TRS 696-JECFA 27/29.

Is Iron classified as hazardous?

74.1% of GHS notifications report no hazard classification (4458 of 6013).

What are the key physical properties of Iron?

Boiling Point: 2,861 °C; Boiling Point: 288 °F; Boiling Point: 2861 °C @760 [mm Hg]; Melting Point: 1538.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.