IRON (II) BROMIDE

Synonym(s):Dibromoiron;Ferrous bromide;Iron dibromide

CAS NO.：7789-46-0
Empirical Formula: Br2Fe
Molecular Weight: 215.65
MDL number: MFCD00016081
EINECS: 232-168-8
SAFETY DATA SHEET (SDS)
Update Date: 2026-01-13 11:24:15

What is IRON (II) BROMIDE?

Chemical properties

Yellow to dark brown lumps

Chemical properties

In contrast to the chloride, iron(III) bromide is unstable under these conditions. The hydrated bromide can be dehydrated in a stream of hydrogen bromide at 400°C. Iron(II) bromide forms a layer lattice of the CdI2 type. It has a magnetic moment,μeff= 5·71 B.M. at 295°K. It is deliquescent and very soluble in water; the pale green hexahydrate crystallizes at room temperature, the tetrahydrate above 49°C and the dihydrate above 83°C. A 9-hydrate forms below -29·3°C. The anhydrous salt is also soluble in ether, ethanol and acetonitrile.

The Uses of IRON (II) BROMIDE

Polymerization catalyst.

The Uses of IRON (II) BROMIDE

Iron(II) bromide is used as a polymerization catalyst. It is used in water treatment, chemical analysis and in ultra high purity for certain crystal growth applications.

Preparation

Iron(II) bromide can be prepared by the direct reaction of bromine or hydrogen bromide with iron at red heat.

General Description

This product has been enhanced for catalytic efficiency.

Properties of IRON (II) BROMIDE

Melting point:	684 °C(lit.)
Boiling point:	934 °C(lit.)
Density	4.63 g/mL at 25 °C(lit.)
solubility	ethanol: very soluble(lit.)
form	beads
color	Yellow
Specific Gravity	4.636
Water Solubility	Soluble in water, THF, methanol, ethanol.
Sensitive	Hygroscopic
Merck	14,4042
Exposure limits	ACGIH: TWA 1 mg/m3 NIOSH: TWA 1 mg/m3
Stability:	hygroscopic
CAS DataBase Reference	7789-46-0(CAS DataBase Reference)
EPA Substance Registry System	Iron bromide (FeBr2) (7789-46-0)

Safety information for IRON (II) BROMIDE

Signal word	Warning
Pictogram(s)	Corrosion Corrosives GHS05 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H314:Skin corrosion/irritation H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation H319:Serious eye damage/eye irritation H332:Acute toxicity,inhalation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P309:IF exposed or if you feel unwell: P310:Immediately call a POISON CENTER or doctor/physician. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.