Ferrous chloride

Description

Ferrous chloride · CAS 7758-94-3 · Cl2Fe. UNII S3Y25PHP1W. Boiling Point: 1023 °C; Boiling Point: 1023 °C @760 [mm Hg]; Melting Point: [ACGIH] 674 °C.

Identification

CAS Registry Number	7758-94-3
PubChem CID	24458
Molecular formula	Cl2Fe
IUPAC name	dichloroiron
UNII (FDA)	S3Y25PHP1W

Computed Descriptors

Molecular Weight	126.75
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	125.872641
Monoisotopic Mass	125.872641
Topological Polar Surface Area	0
Heavy Atom Count	3
Formal Charge	0
Complexity	2.8

Physical & Chemical Properties

Boiling Point	1023 °C
Boiling Point	1023 °C @760 [mm Hg]
Melting Point	[ACGIH] 674 °C
Melting Point	674 °C
Melting Point	676 °C
Solubility	SOL IN 100 CC ALC: 64.4 G @ 10 °C, 105.7 G @ 100 °C.
Density	SP GR: 3.16 @ 25 °C/4 °C
Density	3.16 @25 °C
Vapor Pressure	10 MM HG @ 700 °C
Vapor Pressure	10 [mm Hg] @700 °C

Physical description & handling notes

• Ferrous chloride is a greenish white crystalline solid. It is soluble in water. It is noncombustible. It is used in sewage treatment, in dyeing of fabrics, and for many other uses.
• Ferrous chloride, solution is the greenish-white crystalline solid dissolved in water. It is corrosive to metals and tissue. It is used in dyeing, in medicine, and sewage treatment.
• Liquid
• White to white-green crystals; [NIOSH] Highly hygroscopic white solid (may have a green tint); Soluble in water; [Merck Index] Light green odorless solid; [CHRIS] Off-white odorless powder; [Alfa Aesar MSDS]
• WHITE-TO-LIGHT-GREEN HYGROSCOPIC CRYSTALS.
• WHITE RHOMBOHEDRAL CRYSTALS; MAY SOMETIMES HAVE A GREEN TINT.

Regulatory Status

GHS notification summary	3.1% (10 / 318)

GHS Hazard Classification

GHS notification summary	3.1% (10 / 318)
Reported hazard statements	H290 (60.7%), H302 (96.5%), H317 (12.9%), H318 (93.4%), H412 (44.7%), H315 (100%), H319 (100%)

Documented Uses

• Used as a reducing agent, a mordant in textile dyeing, a sludge dewatering agent in sewage treatment, in metallurgy, as a hot bath in iron plating, and to make pharmaceuticals and ferric chloride; [HSDB] Found in nature as the mineral lawrencite; [Merck Index]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Applying Wood Preservatives [Category: Other]
• Sewer and Wastewater Treatment [Category: Industry]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Metal Extraction and Refining [Category: Industry]

Synonyms

Iron(II) chloride; Iron dichloride; FeCl2; Ferrous dichloride; Iron(2+) chloride; Ferro 66; Iron protochloride; Natural lawrencite; Iron chloride (FeCl2); Iron(II) chloride (1:2); S3Y25PHP1W; CHEBI:30812; RefChem:5826; 231-843-4; 7758-94-3; DTXCID809695

Frequently Asked Questions

What are the CAS number and molecular formula of Ferrous chloride?

CAS 7758-94-3; molecular formula Cl2Fe; molecular weight — g/mol.

What other names is Ferrous chloride known by?

Iron(II) chloride, Iron dichloride, FeCl2, Ferrous dichloride, Iron(2+) chloride, Ferro 66.

Is Ferrous chloride classified as hazardous?

3.1% of GHS notifications report no hazard classification (10 of 318).

What are the key physical properties of Ferrous chloride?

Boiling Point: 1023 °C; Boiling Point: 1023 °C @760 [mm Hg]; Melting Point: [ACGIH] 674 °C; Melting Point: 674 °C.

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.