Ferrous fluoride
Basic information
- CAS
7789-28-8- Standard SMILES
[F-].[F-].[Fe+2]- InChIKey
FZGIHSNZYGFUGM-UHFFFAOYSA-L- Molecular formula
- F2Fe
- Average molar mass
- 93.84 g/mol
- Monoisotopic mass
- 93.931742
Names & identifiers
- Preferred name
- Ferrous fluoride
- IUPAC
- iron(2+) difluoride
- English name
- IRON (II) FLUORIDE
- Molecular formula
- F2Fe
- Molecular weight
- 93.84
Names & synonyms
Ferrous fluorideIron difluorideIron(II) fluorideIron fluoride (FeF2)UNII-NP4W87HLVONP4W87HLVOEINECS 232-155-7FERROUS FLUORIDE [MI]DTXSID50894779RefChem:140312DTXCID8013243407789-28-8
Show more names
FE F2difluoroironIRON FLUORIDEIrondifluorideIron(ll)fluorideironfluoride(fef2)IRON (II) FLUORIDEIron(II) difluoride
iron(2+) difluorideiron(2+);difluorideFERROUS FLUORIDE, ANHYDROUSF2FeSCHEMBL77395FZGIHSNZYGFUGM-UHFFFAOYSA-L
Database identifiers
- CAS
7789-28-8- PubChem CID
- 82237
- DTXSID
DTXSID50894779- UNII
- NP4W87HLVO
- EC Number
- 232-155-7
- Nikkaji
- J95.170F
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 2
- Rotatable bonds
- 0
- Heavy atoms
- 3
- Formal charge
- 0
- Complexity
- 0
Experimental & physicochemical properties
Chemical ClassesMetals -> Metals, Inorganic Compounds
SpringerMaterials Propertiesdielectric constant
Physical DescriptionSolid; Sparingly soluble in water; [Merck Index] White crystalline solid; Hygroscopic; Partly soluble in water; [Alfa Aesar MSDS]
Physicochemical properties
- Melting point
- 1000 °C · >1000°C
- Density
- 4 · 4,09 g/cm3
- solubility
- 2 O; · slightly soluble in H2O; soluble in dilute HF; insoluble in EtOH, ethyl ether
- form
- Powder
- color
- White
- Specific Gravity
- 4.09 · 4.09
- Water Solubility
- Insoluble in water.
- Specific Heat Capacity
- 0.73 J/ · Cp(crystal): 0.73 J/(g·K), at 25℃
- Sensitive
- Air Sensitive & Hygroscopic
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H314 (98.3%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
P260, P264, P264+P265, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 236 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Hazards SummaryAn irritant; Toxic by ingestion, inhalation, and skin absorption; [Alfa Aesar MSDS]
Hazard Classes and CategoriesSkin Corr. 1B (98.3%)
Safety & protection
Exposure Control and Personal Protection
Biological Exposure Indices (BEI) [ACGIH] - Fluorides in urine = 2 mg/L prior to shift or 3 mg/L at end of shift; (Repeated measurements recommended.)
1.0 [mg/m3], inhalable fraction, as F[German Research Foundation (DFG)]
Threshold Limit Values (TLV)2.5 [mg/m3], as F (1 mg/m3, as Fe (soluble iron salts)
Permissible Exposure Limit (PEL)2.5 [mg/m3], as F
Safety data
- F
- 3
- PPE
- Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Chemistry & industry
Uses & manufacturing
UsesUsed as a catalyst in organic reactions; [Merck Index]
General Manufacturing InformationIron fluoride (FeF2): ACTIVE
Applications
UsesIron(II) fluoride is used for proteomics research applications. It is also a chemical intermediate.
UsesIron(II) fluoride is used as a catalyst in organic fluorination reactions. Other applications are in ceramics; and in the preparation of fluoride salts of other metals.
Preparation methods
PreparationAnhydrous iron(II) fluoride may be prepared by passing hydrogen fluoride gas over iron at a high temperature: 2HF + Fe → FeF2 + H2 Alternative methods of preparation of anhydrous salt involve the reduction of iron(III) fluoride with hydrogen; or by passing fluorine gas over anhydrous iron(II) chloride in the cold: 2FeF3 + H2 → 2FeF2 + 2HF FeCl2 + F2 → FeF2 + Cl2 The tetrahydrate may be prepared by dissolving iron metal in aqueous hydrofluoric acid.
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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